2020-2021学年江苏省泰州市医药高新区七年级(下)期末数学试卷

学年江省泰州市药高新区年级（下期末数学试卷一选题共6小，每题分共18分）

xx

x0A+

B

C

DA

B

C

DxxA4B2CD2①33②x+3x

+2ABC①②D①②ABCDA13B24C3D45874x

AC

BD二填题本题有10小题每题3分共分a3ab29c+y10x

y

211xy12

BC+13ABCA80DCE14222

15aba

2

16

12

三解题本题有10小题共分）171[a3

+3

2]a2x12

xx+718121912+3

8

2a0aa2+aa+220EFABCDEFEMBEFFNFNAB

21x+341xy23+322ADO①②AC③ABCD①③231D1DAC2EAC24x20x

x3x+3x30①

②

①33②x9031x

2x+3x032511026220MONOMABADOB1

23

参考答案一选题共6小，每题分共18分）

xxx0A+

B

C

Dx

xx20DA

B

C

D360nn2nn4xxA4B2CD2x1bx12020b①33②x+3x

+2A

BC①②D①②①x3xyy②x1+2x①②CABCDA13B24C3D451CDAB4ABCD1AE224BC434DDD874x

AC

BDy374x

二填题本题有10小题每题3分共分a3aba2

2ab6ab

29c

9c2+9c11cc20

+y23①+②x+3yx210xy3+3yx+3xyx+3xy11xyyx+2x5yy23

ABCBAC90DAC+90AOBO

3

OAB90+DCABAC+DAC+90+909013ABCA80DCE

ABC5080AB80ACD656514222b

aba2b215b2b2ab44aa22aaba2

b2

aa2

416

12

3303+303333

三解题本题有10小题共分）171[a3

+3

2]a2x12+721810a10a2x

7x9x181221②①32xx①2y12

①x②xx1912+3

8

2a0aa2+aa+2

+51•8y22•y22x23y22x2+302+3

24

2a22+22

a45aaa2

+52a2+a410420EFABCDEFEMBEFFNFNABFEBCDEMEFNEMBEFFN221x+341xy23+3

xy2xy1xy3xyxyxy39xy525+xy4x

+23xy15+419xyxy

x2+2

59522ADO①②AC③ABCD①③①③②②①①②②③①ADABBDCDBABDCDBACACCD

AOBAASOAOCOBODADBC231D1DAC2EACBAD+2+BBAEEADBAD+BBACBAD+DACADCB2EACAECAECABEAECBAE+BADEAD1BEACAEC24x9

x

x3x+3x30①

②

①33②x9031x

x22x

x33①

②

2①3①1x0x+2x

②②

①

②

①x2②xx20x2x2xx222

xxx①

②

①②30

3x030①

②

①35②x5251101010013002xa16100xx+10100xx19.52

x+10100x+378x+

aa19.5x22xx20x42078x42178626220MONOMABADOB1232AOCACOOAC2ACOOAC3COBCACB1OMMON60ABOAOB2

2AOC60AOC2OAC90O