七年级下数学相交线与平行线专题总结

position-related consumption of civil servants has been swept by finance, consumer, regardless of cost, extravagance and waste in the civil service position-related consumption, abuse, corruption and embezzlement, corruption is important. Then, under the conditions of market economy, how to reform the existing civil duty consumption management, explores a source to prevent and curb the post consumption corruption way, is currently a major issue faced by honest work. Recently, I conducted research on this issue, this problem on some humble opinions. First, the existing public servants duty consumption the main problems seen from the investigation and reasons, in recent years, public servants duty consumption caused by the abuses and not a person of integrity, is one of the major problems in the party in Government, its operation order have a negative effect on the party and Government organs, seriously damaging the image of the party and the Government, undermining the relationship between party and the masses, effect, opening up and economic construction. From I County in recent years of governance situation see, positions consumption in the produced of two not phenomenon rendering four a features: a is positions consumption system lost has due of binding, right is greater than rules, and right is greater than method of phenomenon more highlight; II is in positions consumption in the Camera Obscura operation, using terms, will positions consumption into has personal consumption, will corporate points to into personal points to, makes positions consumption in some aspects has into positions enjoy and self-dealing of means; three is to positions consumption for name, fraud, false impersonator, Trend of negative corruption phenomena such as corruption and misappropriation; four palaces, follow the fashion, rivalries, wasteful, and post consumption became a symbol of showing off their individual capacities. Caused by public servants duty consumption of many two phenomenon in which people reflect the biggest problems are: (a) the official car problems. Mainly in three aspects: one is the larger buses cost expenditure. According to statistics, until November 2003, XX County township Department bus 159 cars, which department owns the bus 145 vehicles, and showed an increasing trend. Financial expenses cost per bus per year to 35,000 yuan, and in fact every cost up to 50,000 yuan. Some units also hiring temporary drivers and expenditure on wages and subsidies. Necessary to keep a car, but also dependants, leading to larger expenses. Second, gongchesiyong breed unhealthy tendencies. Some people believe that now some bus drivers use one-third, one-third leading private one-third used for official purposes. Some public servants, especially leading officials motoring, cars for private purposes, violating the self-discipline regulations, and even lead to traffic accidents. According to statistics from related departments, since 2004, the correct investigation in our County serves nearly 30 cars for private purposes, only the first half of this year, cars for private purposes or leaders driving a vehicle accident caused by road accidents, 1, 1 people killed and direct economic losses amounting to more than 100,000 yuan. Third, high efficiency and low cost of the bus. Surveys show that, the operating costs of taxis for the 8200/. Is a fundamental priority of the reform, it is a difficult problem that must be solved in the reform process. Clearly, the post consumption averages three years before as a base and fine-tuned on the basis of this single practices must be improved. Improvements to adhere to three principles: first, under the existing policy provisions approved for public servants duty consumption standards, calibration, is not contrary to policy. Second, according to the local financial situation and peoples sustainability, public servants duty consumption standards approved, both financial reach, and people passing through. Third, according to the operational needs of civil servants responsible for authorized public servants duty consumption standards, both high and low positions, but also the nature of the work and the workload. In reform of method Shang, approved civil servants positions consumption standard to big unified, and small dispersed suitable, that most positions consumption project should according to policy provides proposed unified standard, consider to ranks, and units and the work task of differences sex, unified of standard should has elastic of and dynamic of, makes regions, and units in implementation unified standard Shi has must of flexible disposal right; but since set of standard must after financial, and audit, sector audit approved Hou to implementation. (C) reform package. Public servants duty consumption elasticity of consumption to limit consumption, turning mess into kitchen after dinner, follow the civil servant with a how to use personal title subsidies, or how to manage a personal duty consumption use of subsidies. Therefore, we must establish and perfect with public servants duty consumption monetization reform support of the series of governance systems such as the civil service examination of responsibility, system, low fault investigation system, the report said. While other measures to keep up. Discipline inspection and supervision organs, financial, auditing departments should strengthen supervision and inspection of public servants duty consumption monetization reform progress, to strengthen the reform of public servants duty consumption monetization system, measures to develop and monitor the implementation of inspection, not consumption as required, even shifting consumer behavior to stop, serious cases to deal with. Three ideas, public servants duty consumption monetization reform of politics, the economy and the deepening of the reform, public servants duty consumption as somewhere between a reform also demonstrated its importance and urgency. First of all, civil servants especially party and Government leaders and public servants duty consumption there are big drawbacks. NPC deputies and CPPCC members and the broad masses are concerned about. Secondly, the 相交线与平行线专题总结 一、知识点填空 1.两直线相交所成的四个角中，有一条公共边，它们的另一边互为反向延长线， 具有这种关系的两个角，互为_. 2.对顶角的性质可概括为： 3.两直线相交所成的四个角中，如果有一个角是直角，那么就称这两条直线相 互_. 4.垂线的性质：过一点_一条直线与已知直线垂直 连接直线外一点与直线上各点的所在线段中， 5.直线外一点到这条直线的垂线段的长度，叫做 6.两条直线被第三条直线所截，构成八个角，在那些没有公共顶点的角中: 如果两个角分别在两条直线的同一方，并且都在第三条直线的同侧，具有这 种关系的一对角叫做_ ；如果两个角都在两直线之间，并且分 别在第三条直线的两侧，具有这种关系的一对角叫做_ ；如 果两个角都在两直线之间，但它们在第三条直线的同一旁，具有这种关系的 一对角叫做_. 7.在同一平面内，不相交的两条直线互相_.同一平面内的两条直线 的位置关系只有_与_两种. 8.平行公理：经过直线外一点，有且只有一条直线与这条直线_. 推论：如果两条直线都与第三条直线平行，那么_. 9.平行线的判定：两条直线被第三条直线所截，如果同位角相等，那么这两 条直线平行.简单说成：_.两条 直线被第三条直线所截，如果内错角相等，那么这两条直线平行.简单说成： _. 两条直线被第三条直线所截，如果同旁 内角互补，那么这两条直线平行.简单说成： _. 10. 在同一平面内，如果两条直线都垂直于同一条直线，那么这两条直线 _ . 11. 平行线的性质：两条平行直线被第三条直线所截，同位角相等.简单说成： 两条平行直线被第三条直线所截，内错角相等.简单说成： _.两条平行直线被第三条直线所截， 同旁内角互补.简单说成：_ . 12. 判断一件事情的语句，叫做_.命题由_和_两部分组 成.题设是已知事项，结论是_.命题常可以写成“如 果那么”的形式，这时“如果”后接的部分是 ， “那么”后接的部分是_. 如果题设成立，那么结论一定成立.像 这样的命题叫做_.如果题设成立时，不能保证结论一定成立，像 这样的命题叫做_.定理都是真命题. 13. 把一个图形整体沿某一方向移动，会得到一个新图形，图形的这种移动，叫 做平移变换，简称_.图形平移的方向不一定是水平的. 14. 平移的性质：把一个图形整体平移得到的新图形与原图形的形状与大小完 全_ _.新图形中的每一点，都是由原图形中的某一点移动 后得到的，这两个点是对应点.连接各组对应点的线段_. 二：典型题型训练 15. 如图， 那么点,8,6,10,BCAC CBcm ACcm ABcm A到BC的距离是_，点B到AC的距离是_，点A、B两点的距离 是_，点C到AB的距离是_ position-related consumption of civil servants has been swept by finance, consumer, regardless of cost, extravagance and waste in the civil service position-related consumption, abuse, corruption and embezzlement, corruption is important. Then, under the conditions of market economy, how to reform the existing civil duty consumption management, explores a source to prevent and curb the post consumption corruption way, is currently a major issue faced by honest work. Recently, I conducted research on this issue, this problem on some humble opinions. First, the existing public servants duty consumption the main problems seen from the investigation and reasons, in recent years, public servants duty consumption caused by the abuses and not a person of integrity, is one of the major problems in the party in Government, its operation order have a negative effect on the party and Government organs, seriously damaging the image of the party and the Government, undermining the relationship between party and the masses, effect, opening up and economic construction. From I County in recent years of governance situation see, positions consumption in the produced of two not phenomenon rendering four a features: a is positions consumption system lost has due of binding, right is greater than rules, and right is greater than method of phenomenon more highlight; II is in positions consumption in the Camera Obscura operation, using terms, will positions consumption into has personal consumption, will corporate points to into personal points to, makes positions consumption in some aspects has into positions enjoy and self-dealing of means; three is to positions consumption for name, fraud, false impersonator, Trend of negative corruption phenomena such as corruption and misappropriation; four palaces, follow the fashion, rivalries, wasteful, and post consumption became a symbol of showing off their individual capacities. Caused by public servants duty consumption of many two phenomenon in which people reflect the biggest problems are: (a) the official car problems. Mainly in three aspects: one is the larger buses cost expenditure. According to statistics, until November 2003, XX County township Department bus 159 cars, which department owns the bus 145 vehicles, and showed an increasing trend. Financial expenses cost per bus per year to 35,000 yuan, and in fact every cost up to 50,000 yuan. Some units also hiring temporary drivers and expenditure on wages and subsidies. Necessary to keep a car, but also dependants, leading to larger expenses. Second, gongchesiyong breed unhealthy tendencies. Some people believe that now some bus drivers use one-third, one-third leading private one-third used for official purposes. Some public servants, especially leading officials motoring, cars for private purposes, violating the self-discipline regulations, and even lead to traffic accidents. According to statistics from related departments, since 2004, the correct investigation in our County serves nearly 30 cars for private purposes, only the first half of this year, cars for private purposes or leaders driving a vehicle accident caused by road accidents, 1, 1 people killed and direct economic losses amounting to more than 100,000 yuan. Third, high efficiency and low cost of the bus. Surveys show that, the operating costs of taxis for the 8200/. Is a fundamental priority of the reform, it is a difficult problem that must be solved in the reform process. Clearly, the post consumption averages three years before as a base and fine-tuned on the basis of this single practices must be improved. Improvements to adhere to three principles: first, under the existing policy provisions approved for public servants duty consumption standards, calibration, is not contrary to policy. Second, according to the local financial situation and peoples sustainability, public servants duty consumption standards approved, both financial reach, and people passing through. Third, according to the operational needs of civil servants responsible for authorized public servants duty consumption standards, both high and low positions, but also the nature of the work and the workload. In reform of method Shang, approved civil servants positions consumption standard to big unified, and small dispersed suitable, that most positions consumption project should according to policy provides proposed unified standard, consider to ranks, and units and the work task of differences sex, unified of standard should has elastic of and dynamic of, makes regions, and units in implementation unified standard Shi has must of flexible disposal right; but since set of standard must after financial, and audit, sector audit approved Hou to implementation. (C) reform package. Public servants duty consumption elasticity of consumption to limit consumption, turning mess into kitchen after dinner, follow the civil servant with a how to use personal title subsidies, or how to manage a personal duty consumption use of subsidies. Therefore, we must establish and perfect with public servants duty consumption monetization reform support of the series of governance systems such as the civil service examination of responsibility, system, low fault investigation system, the report said. While other measures to keep up. Discipline inspection and supervision organs, financial, auditing departments should strengthen supervision and inspection of public servants duty consumption monetization reform progress, to strengthen the reform of public servants duty consumption monetization system, measures to develop and monitor the implementation of inspection, not consumption as required, even shifting consumer behavior to stop, serious cases to deal with. Three ideas, public servants duty consumption monetization reform of politics, the economy and the deepening of the reform, public servants duty consumption as somewhere between a reform also demonstrated its importance and urgency. First of all, civil servants especially party and Government leaders and public servants duty consumption there are big drawbacks. NPC deputies and CPPCC members and the broad masses are concerned about. Secondly, the 16. 设、b、c为平面上三条不同直线，若，则a与c的位置关系a/ , /ab bc 是_；若，则a与c的位置关系是_；若，,ab bc/ab ，则a与c的位置关系是_bc 17. 如图，已知AB、CD、EF相交于点O，ABCD，OG平分AOE，FOD28， 求COE、AOE、AOG的度数 18. 如图，与是邻补角，OD、OE分别是与的平AOCBOCAOCBOC 分线，试判断OD与OE的位置关系，并说明理由 19. 如图，ABDE，试问B、E、BCE有什么关系 解：BEBCE过点C作CFAB， 则_（ ）B 又ABDE，ABCF， _（ ） E_（ ） BE12 即BEBCE 20. 如图，已知12 求证：ab直线，求证：/ab12 21. 阅读理解并在括号内填注理由： 如图，已知ABCD，12，试说明EPFQ 证明：ABCD， MEBMFD（ ） 又12， MEB1MFD2， 即 MEP_ EP_ （ ） 22. 已知DBFGEC，A是FG上一点，ABD60，ACE36，AP平分 BAC，求：BAC的大小；PAG的大小. position-related consumption of civil servants has been swept by finance, consumer, regardless of cost, extravagance and waste in the civil service position-related consumption, abuse, corruption and embezzlement, corruption is important. Then, under the conditions of market economy, how to reform the existing civil duty consumption management, explores a source to prevent and curb the post consumption corruption way, is currently a major issue faced by honest work. Recently, I conducted research on this issue, this problem on some humble opinions. First, the existing public servants duty consumption the main problems seen from the investigation and reasons, in recent years, public servants duty consumption caused by the abuses and not a person of integrity, is one of the major problems in the party in Government, its operation order have a negative effect on the party and Government organs, seriously damaging the image of the party and the Government, undermining the relationship between party and the masses, effect, opening up and economic construction. From I County in recent years of governance situation see, positions consumption in the produced of two not phenomenon rendering four a features: a is positions consumption system lost has due of binding, right is greater than rules, and right is greater than method of phenomenon more highlight; II is in positions consumption in the Camera Obscura operation, using terms, will positions consumption into has personal consumption, will corporate points to into personal points to, makes positions consumption in some aspects has into positions enjoy and self-dealing of means; three is to positions consumption for name, fraud, false impersonator, Trend of negative corruption phenomena such as corruption and misappropriation; four palaces, follow the fashion, rivalries, wasteful, and post consumption became a symbol of showing off their individual capacities. Caused by public servants duty consumption of many two phenomenon in which people reflect the biggest problems are: (a) the official car problems. Mainly in three aspects: one is the larger buses cost expenditure. According to statistics, until November 2003, XX County township Department bus 159 cars, which department owns the bus 145 vehicles, and showed an increasing trend. Financial expenses cost per bus per year to 35,000 yuan, and in fact every cost up to 50,000 yuan. Some units also hiring temporary drivers and expenditure on wages and subsidies. Necessary to keep a car, but also dependants, leading to larger expenses. Second, gongchesiyong breed unhealthy tendencies. Some people believe that now some bus drivers use one-third, one-third leading private one-third used for official purposes. Some public servants, especially leading officials motoring, cars for private purposes, violating the self-discipline regulations, and even lead to traffic accidents. According to statistics from related departments, since 2004, the correct investigation in our County serves nearly 30 cars for private purposes, only the first half of this year, cars for private purposes or leaders driving a vehicle accident caused by road accidents, 1,