學(xué)年浙省寧波市北區(qū)七年第一學(xué)期末數(shù)學(xué)試卷一選擇（每題3分共分在每題出的個(gè)項(xiàng)，只一符題要）AB2021C

DA35.95

B3.595104

C10

D3.5950

A1

B2

C3

DA22

B1|1Cxx2

Dx2

x355ABCD4A2B626D442x+823aaA133D

A82B

CDACCAB68A6+458+3B6+45x3C68+3D645x310z+y|x+CA

B

C

DD二填題每題4分，分）1112eq\o\ac(△,a)a2beq\o\ac(△,2)36eq\o\ac(△,2)513CDABCB4DBD142y42+4+115340900α16x3x三解題本有7個(gè)小，分）1719

2181x2

19aba

+|2b01ab2A3Bb22abA2B201AGAH2

ABC3AGAHAH216/8/1121122O1AOD2ODOAOAOCBOD

23

1717

3.4///1

27

2xx30x②60

參考答案一選擇（每題3分共分在每題出的個(gè)項(xiàng)，只一符題要）AB2021C2021

DA35.95

B3.595104

C10

D3.595a

n

1a101

B2

C3

D0C

23A22B1|

Cxx2D22

x355ACDA4BC.2xxxD.22

x

ABCD4A2B626D44A4A246

C2x+823aaA133D26xx2a5a2+86x7x7x35aCA82B

CDACCABAB

CDACCABD68A6+458+3B6+45x3C68+3D645x368+3

10z+y|x+CA

B

C

DDAxyzxyz

++yx0||z++|+yxCx0zyx|+x|z+++CD0yx+|y+x++DD二填題每題4分，分）111

12eq\o\ac(△,a)a2beq\o\ac(△,2)36eq\o\ac(△,2)51653251616

13CDABCB4DBD

DCDB43cmDAC2142y42+4+1xy+1x22x+4+12y27715340900α

3307540400016x3x

xm24m

xxm+1m+1m4m2m+1m1m三解題本有7個(gè)小，分）171922179523181x221

1x1x21x1+2x3x2x1x2x35+10xx102x419aba

+|2b01ab2A3Bb22abA2Ba2AA2b1aba+1+|2b0a+10a1b2234abBb22ab

0b0234ab2

2ab3

bab3

b2

ab3

b2

1223124385201AGAH2

AGA

3AGAHAGAH

AH231AH2AGAH216/8/11211165

2416x665x400x552664a+84008822O1AOD2ODOAOAOCBOD1AOD2DOCDOC1AODAOBBOD90352BODAOB

AOD+BOD+BOC180AOD+AOC+180AOB+COD+AOC+36090+DOC23

1717

3.4///115

2xx30x②6017272+13+3a17a+270.721511757.8+53.2

15