版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、.反义疑问句一句型解释反义疑问句(The Disjunctive Question):即附加疑问句。它表示提问人的看法,没有把握,需要对方证实。 反义疑问句由两部分组成:前一部分是一个陈述句,后一部分是一个简短的疑问句,两部分的人称时态应保持一致。 1陈述部分肯定式+疑问部分否定式 2陈述部分否定式+疑问部分肯定式 She was ill yesterday, wasnt she" You didnt go, did you" 二特殊的句型1.祈使句。祈使句后一般加上will you或won't you构成反意疑问句,用will you 多表示“请求”,用won
2、39;t you 多表示提醒对方注意。例如: Let引导的祈使句有两种情况: 1)Let's.,后的反意疑问句用shall we或shan't we。例如:Let's go home, shall we/ shan't we" 回家吧,好吗. 2)Let us/me.后的反意疑问句用will you或won't you。例如:Let me have a try, will you/won't you" 3)祈使句都用will you 或wont you2.当陈述部分含I think (believe, suppose.)tha
3、t. 结构时,其反意疑问句须与从句的主、谓语保持一致,注意主句的主语必须是第一人称。例如: I don't think he will come, will he" 若是非第一人称,则与主句的主语相一致He thinks that she will come, doesnt he"反意疑问句的陈述部分为I(We) dont think(believe, suppose, consider)+ that从句时,从句为否定意义,问句部分的动词和主语仍与that从句保持一致且用肯定式。如:I dont think that you can do it, can you&q
4、uot; (不用do I")We dont believe that the news is true, is it" (不用do we")反意疑问句的陈述部分为主语+said( told, reported, asked) + that从句时,问句部分的动词和主语与陈述部分的主句动词和主语保持一致。如:They said that you had finished your work, didnt they" (不用hadnt you)Kate told you that she would go there, didnt she" (不用w
5、ouldnt she")3.当反意疑问句的陈述部分为从句时,若主句主语为 I ,反意部分的主语为从句主语;若不为 I ,反义部分的主语为主句主语。I know your father is a worker, isn't he"she knows your father is a worker, doesnt she"4.当陈述部分含有以下这些含有否定意义的词时:few, little, seldom,hardly, never, not, no, no one, nobody, nothing, none, neither等,其反意疑问句需用肯定结构。例
6、如: He is never late for school, is he" 5.当陈述部分所含的否定词是通过加前缀或后缀构成的,其后的反意疑问句依然用否定结构。例如:It is unfair, isn't it" 这不公平,是吧. 6陈述部分主、谓语是I am.时,反意疑问句用aren't I ,而不是am not I (可用am I not)。例如:I'm working now, aren't I" 我在工作,是吗.7. 陈述部分的主语是 everybody, everyone, anybody, anyone, somebo
7、dy, someone, nobody, no one, none, neither 时, 其反意疑问句的主语需用复数代词they。例如: Everyone is here, aren't they" 大家都到了,是吗. No one knows about it, do they" 没有人知道这件事,对吗. 8.陈述部分的主语是everything, nothing, anything或something 时,反意疑问句的主语应用代词it。例如:Something is wrong with my radio, isn't it" 我的收音机出毛
8、病了,是吧. 9.陈述部分的主语是指示代词this或that时,反意疑问句的主语用it,当陈述部分的主语是指示代词these或those时,其反意疑问句的主语用they。例如:This is a plane, isn't it" 这是一架飞机,是吗. These are grapes,aren't they" 这些是葡萄,是吗.10.陈述部分的主语是不定代词one时,反意疑问句的主语可以用one,也可用you。例如:One should be ready to help others, shouldn't one" 每个人都应该乐于助人,是
9、吧.11. 当陈述部分谓语动词是need, dare,且这些词被用作实义动词时,其反意疑问句需用do的适当形式。例如:He needs help, doesn't he"他需要帮助,是吗. 12.当陈述部分主语是从句、不定式(短语)、动词-ing形式时,反意疑问句的主语应该用it。例如:What you need is more important, isn't it.你需要的东西更重要,是吧. 12.have(has)不是表示“有”的意思,并在句中做谓语时,其反意疑问句的助动词要用do, does, did。例如:They had a meeting just no
10、w,didn't they" 他们刚才开了个会,是吗. 15.陈述部分有have to 时,其反意疑问句要用助动词的否定形式。例如:You have to water the vegetables every day, don't you"You had to water the vegetables every day, didn't you"16.He used to stay up late, usednt he/ didnt he"17.陈述部分是there be句型时,其反意疑问句中要用there。There was a
11、 hospital here, wasn't there" 18.陈述部分有had better时,反意疑问句中要用hadn't。例如:Wed better go to school at once, hadn't we" Hed rather go home, wouldnt he"19.当陈述部分含有情态动词must时,我们便要分析一下must的含义。如果must 作“一定;要;必须”讲,反意疑问句须用mustn't或needn't;而当must作推测意义“一定是;必定”讲时,反意疑问句则需根据must后的动词原形选用相
12、应的形式。例如: He must work hard at physics, mustn't he" 他必须努力学物理,是吧. Tom must be at home,isn't he" 汤姆一定在家,是吧He might have forgotten his pen in the classroom yesterday, didnt he" (不用mightnt he"/ hasnt he")You must have got up late this morning, didnt you"(不用mustnt you
13、"/havent you")20.反意疑问句的回答用yes, no, 但是,回答意思相反,当陈述部分是否定形式时,回答要按事实。例如:They dont work hard, do they" Yes, they do. 不,他们工作努力。/No, they dont. 对, 他们工作不努力。反意疑问句的陈述部分为I am时,问句部分习惯上用arent I.表示。如:I am a very honest man, arent I" 反意疑问句二反意疑问句是英语四大问句之一,它是由一个陈述句加上一个短问句而构成的。反意疑问句的基本构成形式是:陈述句+动词(
14、肯定或否定)+主语.如:She often has lunch at school, doesnt she" You dont like sports, do you" 一、 反意疑问句中问句部分的动词与陈述部分的动词在语气上成相反的对应关系,即:肯定+否定. 否定+肯定.如:You cant do it, can you" They are very late for the meeting, arent they" 二、 反意疑问句中问句部分的动词与陈述部分的动词种类要对应一致。如:He has supper at home e
15、very day, doesnt he" (不能用hasnt he")They have known the matter, havent they" (不能用dont they")三、反意疑问句中问句部分的动词在时态上应和陈述部分的时态一致。如:They will go to town soon, wont they"(不能用dont they"或 arent they")He works very hard, doesnt he"(不能用didnt he"或wont he")四、反意疑问句的
16、陈述部分带有little, few, never, hardly, seldom等否定意义的词时,问句部分用肯定式。如:She never tells a lie, does she"(不用doesnt she")He was seldom late, was he"(不用wasnt he")五、反意疑问句的陈述部分含有由un-, im-, in-, dis-, 等否定意义的前缀构成的词语时,陈述部分要视为肯定含义,问句部分用否定形式。如:Your father is unhappy, isnt he"(不能用is he")The m
17、an is dishonest, isnt he" (不能用is he")六、反意疑问句的陈述部分为I am时,问句部分习惯上用arent I.表示。如:I am a very honest man, arent I" 八、反意疑问句的陈述部分为I(We) dont think(believe, suppose, consider)+ that从句时,从句为否定意义,问句部分的动词和主语仍与that从句保持一致且用肯定式。如:I dont think that you can do it, can you" (不用do I")We dont b
18、elieve that the news is true, is it" (不用do we")九、反意疑问句的陈述部分为非第一人称主语+ think(believe, suppose, consider) + that从句时,问句部分的动词和主语与陈述部分的主句动词和主语保持一致。如:They all think that English is very important, dont they" (不用isnt it")He didnt think that the news was true, did he" (不用wasnt/ was i
19、t")十、反意疑问句的陈述部分为主语+said( told, reported, asked) + that从句时,问句部分的动词和主语与陈述部分的主句动词和主语保持一致。如:They said that you had finished your work, didnt they" (不用hadnt you)Kate told you that she would go there, didnt she" (不用wouldnt she")十一、陈述部分的主语为不定代词something, anything, nothing, everything时,问
20、句部分的主语用it。如:Something is wrong with the computer, isnt it"Nothing has happened to them, has it"十二、陈述部分的主语为不定代词somebody(someone), anybody(anyone), nobody(no one), everybody(everyone)时,问句部分的主语用he或 they,这时问句动词的数应和he或 they一致。如:Someone has taken the seat, hasnt he"Everyone has done their b
21、est in the game, havent they"十三、陈述部分为Let me时,问句部分习惯上用shall I" 或will you"形式。如:Let me have a try, shall I"(will you") 十四、陈述部分为Let us时,问句部分习惯上用will you" 陈述部分为Lets时,问句部分习惯上用shall we"如:Let us stop to rest, will you" Lets go home together, shall we" 十六、陈述部分用上述情
22、况以外的祈使句时,问句部分一般用will you"形式表示请求,用wont you.形式表示委婉请求或邀请。如:Do sit down, wont you"/ will you" Jim,you feed the bird today, will you" Please open the window, will you"(wont you") 十七、陈述部分为否定祈使句时,问句部分一般用will you"如:Dont make any noise, will you" 十八、陈述部分为There (Here) +
23、 be + 主语时,问句部分用动词+there(here)"。如:There are two cakes on the plate, arent there" Here is a story about Mark Twain, isnt here"十九、陈述部分用had better +原形动词表示建议时,问句部分用hadnt +主语.。Youd better tell him about the matter, hadnt you"We had better do it by ourselves, hadnt we"二十、陈述部分用used
24、to +主语时,问句部分用didnt + 主语.或usednt He used to live in the country, didnt he"/usednt he"They used to be good friends, didnt they"/usednt they"二十一、陈述部分用must(may, might) + have + V-ed表示推测时,若句中带有明显的过去时间的状语,问句部分动词用过去时形式。如:He might have forgotten his pen in the classroom yesterday, didnt
25、he" (不用mightnt he"/ hasnt he")You must have got up late this morning, didnt you"(不用mustnt you"/havent you") 二十二、陈述部分用must(may, might) + have + V-ed表示推测时,若句中没有带明显的过去时间的状语,问句部分动词用现在完成时形式。如:Everyone must have known the death of the waitress, havent they" (不用mustnt the
26、y")You must have worked there a year ago, didnt you"(不用mustnt you"/ havent you") 二十三、陈述部分的主语为从句时,问句部分的主语一般用it代替,如:What he said is true, isn't it" (不用didnt he")Where we will build the dam has not been decided yet, has it" (不用wont we")二十四、陈述部分的主语为动名词或不定式时,问句
27、的主语用it代替。如:To do one good deed is easy for a person, isn't it"Skating is your favorite sport, isn't it" 反意疑问句考点反意疑问句是高考重要考点,其构成形式是"肯定 + 否定"和"否定 + 肯定",但也有一些特例。本文结合高考试题,对反意疑问句的易考点进行归纳。1. 陈述句部分的谓语是be, had better或情态动词等时,反意疑问句仍用这些动词。原题再现Bill's aim is to inform th
28、e viewers that cigarette advertising on TV is illegal, _"A. isn't it B. is it C. isn't he D. is he答案: A2. 陈述部分的谓语是have时,若have作"有"解,反意疑问部分用have (has) 或do (does)的肯定或否定式; 若have作使役动词,则只能用do (does, did)的适当形式进行反问。原题再现His wife had the front door painted green yesterday, _she"A.
29、did B. had C. didn't D. hadn't答案: C3. 陈述部分含有no, never, seldom, hardly, few, little, nowhere, nothing等否定意义的词时,反意疑问部分用肯定形式;但陈述部分若使用含有否定意义的前缀或后缀的词时,反意疑问部分仍然使用否定形式。原题再现He seldom has lunch at school, _"A. hasn't he B. has he C. doesn't he D. does he答案: DThey dislike English, don'
30、t they" 他们不喜欢英语,不是吗.4、 含有下列情态动词时构成的反意疑问句形式 a、陈述句有had better时,问句中用had (hadnt) 。Youd better go home now, hadnt you"b、陈述句中有 must表示“必须”时问句用 needn't或 mustn'tYou must do your homework, mustn't you"/ needn't you"We mustnt go home, must (need) we"c、must表示“推测”时,问句中则不能
31、用情态动词,而需要用其它形式。如:She must be in the room, isnt she"You must have been to Shanghai, havent you"原题再现There is no light in the dormitory. They must have gone to the lecture, _"A. didn't they B. don't they C. mustn't they D. haven't they答案: D5. 陈述部分的主语是everyone, everybody,
32、anyone, anybody, someone, no one等不定代词时,其疑问部分的主语可根据句子的内涵选用he或they。例如:Everyone knows his job, doesn't he"Everyone had lent you a hand when you were in trouble, hadn't they"6. 陈述部分的主语是something, anything, everything, nothing等不定代词,其疑问部分的主语一般用it。例如:Everything is ready, isn't it"
33、;Nothing goes well, does it"7. 陈述部分是there be句型时,反意疑问部分用".there"。原题再现There's not much news in today's paper, _"A. isn't it B. are thereC. is there D. aren't there答案: C8. 陈述部分谓语含有used to时,反意疑问部分可用usedn't,也可用didn't;陈述部分含有ought to时,反意疑问部分可用oughtn't或shouldn
34、't两种形式。例如:Tom used to make fun of Peter, usedn't / didn't he"We ought to learn the law knowledge by heart, oughtn't / shouldn't we"9. 陈述部分的主语是this, that,不定式短语、动名词短语或从句时,反意疑问部分的主语用it;陈述部分的主语是these, those时,反意疑问部分的主语用they。例如:This is a most wonderful place, isn't it&quo
35、t;Learning a foreign language well takes a long time, doesn't it"That they are close friends doesn't seem true, does it"10. 陈述部分的主语后有同位语从句或定语从句修饰时,反意疑问部分仍应对主句主语进行反问。原题再现The news that they failed their driving test discouraged him, _"A. did they B. di dn't they C. did it D.
36、 didn't it答案: D11. 陈述部分为含有宾语从句的主从复合句时,通常要对主句主语进行反问;但若陈述部分是"I (don't) think / suppose / believe / imagine / expect等 + 宾语从句"时,要对宾语从句的主语进行反问,同时要注意否定转移现象。原题再现I don't suppose anyone will volunteer, _"A. do I B. don't I C. will they D. won't they答案: C12. 陈述部分为祈使句时,不论祈使句是
37、肯定形式还是否定形式,反意疑问部分通常用will you;但Let's引起的祈使句的反意疑问句部分通常用shall we。原题再现If you want help-money or anything, let me know, _ you"A. don't B. will C. shall D. do答案: B 13、陈述句部分是"I wish"句型时,附加问句部分用may I。例如: I wish I were you, may I" 我希望我是你,可以吗.I wish her to come here, may I" 我希望
38、她到这儿来,可以吗.预测题 1.Nobody says a word about the incident, _"A. is he B. doesnt he C. do they D. dont they 2.You never told me why you were late for the class, _"A. werent you B. didnt you C. had you D. did you3.They dare not call you a fool, _"A. would they B. dared they C. dares they D.
39、 dare they4.There is not much news in todays paper, _"A. isnt it B. are there C. is there D. arent there 5.The manager came here in a car, _"A. was he B. did he C. wasnt he D. didnt he6.She must have arrived there yesterday, _"A. have she B. must she C. didnt she D. mustnt she7.Peter
40、hardly ever goes to parties, _"A. doesnt he B. do he C. does he D. is he8.What a lovely day, _"A. doesnt it B. isnt it C. shant it D. hasnt it9.Let me do it, _"A. shall I B. shall weC. will you D. will I10.Nothing he did was right, _"A. did he B. was it C. didnt it D. was he11.Th
41、ere used to be a church behind the cemetery, _"A. didnt there B. used there C. usednt it D. didnt it12.He must be in the library now, _"A. doesnt he B. mustnt he C. neednt he D. isnt he13.You would rather not have fish, _ you"A. hadnt B. wouldnt C. would D. had14.-You are not a new me
42、mber, are you" - _. I joined only yesterday.A. No, Im not B. Yes, Im not C. No, I am D. Yes, I am15.My sister often needs help with her study, _"A. need she B. neednt she C. does she D. doesnt she16.Youd better send for a doctor for your mother, _ you"A. had B. hadnt C. would D. would
43、nt17.Lets go swimming, _"A. arent we B. shall we C. will you D. wont we18.Li Ming cant be in the classroom, _"A. can he B. is he C. cant he D. must he19.He ought to have looked after his father, _"A. oughtnt he B. ought he not to C. oughtnt he to D. oughtnt to he20.I have nothing to d
44、o with the matter, _"A. have I B. has it C. do I D. does it21.He was in good heath when I saw him last time, _"A. wasnt he B. didnt he C. hadnt he D. hasnt he22.John had his hair cut yesterday afternoon, _"A. havent he B. didnt he C. hadnt he D. hasnt he23.None of the pupils attended
45、the sports meet, _"A. did they B. do they C. didnt they D. dont they24.Id like to go with you, _"A. had I B. wouldnt I C. hadnt I D. would I25.It is the third time that John has been late, _"A. hasnt he B. isnt he C. isnt it D. hasnt it26.I suppose he is serious, _"A. do I B. don
46、t I C. is he D. isnt he27.She dislikes this skirt, _"A. doesnt she B. does she C. isnt she D. is she28.You mustnt tell it to your mother, _"A. must you B. do you C. need you D. will you29.They have to face the difficulty, _"A. havent they B. dont they C. do they D. must they30.The man
47、 in blue must be your brother, _"A. mustnt he B. neednt he C. isnt he D. is he 答案与提示: 1.C当陈述部分中的主语为everybody, everyone, someone, no one, nobody, somebody等不定代词时,反意疑问句部分中的主语常用they。且陈述部分为否定意义的词nobody, 反意疑问部分应用肯定形式。 2.D当陈述部分是主从复合句时,反意疑问部分中的动词和主语代词通常应和主句中的动词和主语保持一致。3.D当陈述部分中含有情态动词dare 时,反意疑问部分也应用情态动
48、词dare(没有人称和数的变化)4.C陈述句部分含有not,是否定式,所以反意疑问部分应用肯定式。而且当陈述部分是there be结构时, 反意疑问部分用there,省略主语代词。5.D当陈述部分的动词是行为动词时,而且前面又没有任何助动词时,这时的疑问部分要用do/does/did。6.C如果must have done句式中的时间状语为表示过去的时间的词,如last year, yesterday, the day before yesterday等,反意疑问部分常用didnt + 主语。7.C如果陈述部分已有表示否定意义的副词,如never, nothing, seldom, rarel
49、y, hardly等时,反意疑问部分应用肯定形式。8.B当陈述句部分为感叹句时,反意疑问句部分常用否定形式,且问句部分的动词常用be。9.C当陈述部分是祈使句时,反意疑问部分常用will you。10.B当陈述部分的主语是everything, anything, nothing, something等表物的不定代词时,反意疑问部分的主语常用it。11.A当陈述部分是there be结构时, 反意疑问部分用there,省略主语代词。当陈述部分含有情态动词used to时,反意疑问部分可用used to形式或did形式。所以此空应填didnt there 或usednt there。 12.D
50、must/ may/ cant + do 表示对现在情况的推测,反意疑问部分用一般现在时。He must be in the library now.相当于I think he is in the library now.13.C当陈述句部分含had better/best, would like to, would rather等约定俗成特殊短语时,反意疑问部分应保留第一个词。如此题中的陈述部分含有would rather的否定式,则反意疑问部分用would。14.D反意疑问句的答语应根据实际情况来回答,如果事实是肯定的,前面要用yes,否则用no。回答中的肯定否定关系可以用下面这个公式表示
51、:(表示肯定,表示否定)问句中:, 或,回答中:,或,15.D陈述句部分含有实义动词needs, 所以反意疑问部分要用助动词doesnt。 16.B当陈述部分有had better时,反意疑问部分应用hadnt。17.B当陈述部分是祈使句时,反意疑问部分常用will you. 但以Lets 开头的祈使句,反意疑问部分常用shall we.以Let us开头的祈使句,反意疑问部分常用will you。18.B当陈述部分含有情态动词must, may, cant, 且表示推测时,反意疑问部分不能用must, may, cant自身,应和后面的实义动词保持一致. Ling Ming cant be
52、in the classroom.相当于:I dont think Li Ming is in the classroom.19.A当陈述部分含有情态动词ought to时,反意疑问部分常用oughtnt。20.C本题中的陈述部分中的have是实义动词,不作“有”解,所以反意疑问部分应需借助助动词do, does, did等来完成。21.A当陈述部分是主从复合句时,反意疑问部分中的动词和主语代词通常应和主句中的动词和主语保持一致。此题的主句是:He was in good health.22.B本题中的陈述部分中的had是实义动词,不作“有” 解,所以反意疑问部分应需借助助动词did来完成。2
53、3.A当陈述部分的主语是everybody, everyone, someone, none, nobody, somebody等不定代词时,反意疑问句部分中的主语常用they。本题中的陈述句部分用的一般过去时态。24.B当陈述部分中有would like时,反意疑问部分应用wouldnt。25.C当陈述句部分是强调句或类似强调句的结构时,反意疑问部分常和句首的It is/was保持一致。 26.D当陈述部分的主句是I suppose, I think, I believe, I imagine等结构时,反意疑问部分往往与从句保持一致,而且要注意否定转移。27.A当陈述部分中含有im, in,
54、 dis, un等否定前缀或less等否定后缀时,应把陈述部分看成是肯定的,反意疑问部分要用否定式。28.A当陈述部分含有情态动词mustnt表示“禁止”时,反意疑问部分常用must。29.B当陈述部分含有have,而且have作“有”解时,反意疑问部分用have/has或借助助动词do, does, did等来完成;如果陈述部分中的have是实义动词,则反意疑问部分应需借助助动词do, does, did等来完成。本题陈述部分中的have to (不得不)为实义动词,所以反意疑问部分不能用havent。30.C当陈述部分是must,may, cant, 且表示推测时,反意疑问部分不能用mus
55、t, may, cant自身,应和后面的实义动词保持一致. 本题中的陈述部分The man in blue must be your brother相当于:I think the man in blue is your brother.反意疑问句练习二1. I suppose the shoes will last you at least one year, _" A. wont they B. will they C. do I D. dont 2. Everyone is surprised at the news, _" A, is he B. are they C
56、. arent they D. is not he 3. - You will come to have dinner with us, wont you" - _ A. Excuse me, I wont. B. I havent been there. C. You are welcome. D. Yes. Thats very nice of you. 4. Tom isnt a hard-working student, for it is the third time he has been late, _" A. wasnt it B. hasnt it C. isnt it D. hasnt he 5. You dont have to go school on Sundays, _ you" A. have B. do C. should D. would 6. I dont
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 海外代购劳务合同范例
- 课题资金赞助合同范例
- 外汇期货合同范例
- 教授聘用合同范例
- 铺间租赁合同范例
- 青海警官职业学院《人身保险》2023-2024学年第一学期期末试卷
- 中国酵母澄清剂项目投资可行性研究报告
- 硬网眼布行业深度研究报告
- 2024至2030年中国电控阀放风阀试验台行业投资前景及策略咨询研究报告
- 2024年互联网软件项目可行性研究报告
- 2024年内蒙古电力集团招聘笔试参考题库含答案解析
- 麻醉药相关项目营销策略方案
- 30题战略规划岗位常见面试问题含HR问题考察点及参考回答
- 闸门槽施工方案
- 国家开放大学《供应链管理》形考作业1-4参考答案
- 科研伦理与学术规范
- 《艾滋病宣传教育》课件
- 学校人事工作个人总结
- 23秋国家开放大学《学前儿童音乐教育活动指导》形考任务1-4参考答案
- 小学校本课程-《海鸥又飞回来了》教学课件设计
- SGS 质量检验报告
评论
0/150
提交评论