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【简答题】
化简(4分×4,共16分) 小题1:(1)2 x 2 y -2 xy -4 xy 2 + xy +4 x 2 y -3 xy 2 小题2:(2) 3 (4 x 2 -3 x +2)-2 (1-4 x 2 + x ) 小题3:(3)5 abc -2 a 2 b -[ 3 abc -3 (4 ab 2 + a 2 b )] 小题4: (4) (2 x 2 + x )-2[ x 2 -2(3 x 2 - x )]
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【单选题】听力原文:M: Would you mind opening the window? W: No, of course not, but Lucy has a headache. Q: What is the woman going to do for Lucy's sake? (3)
A.
Keep the window closed.
B.
Open the window.
C.
Go to see a doctor.
D.
Send Lucy to hospital.
【简答题】Complete the dialogues with the correct forms. A. are you up for it B.I can't stand C.I don't feel like it D. Thanks a bunch E. it slipped my mind Stacey: So, what do you think? Can we meet to discuss...
【单选题】组成射精管的是
A.
输精管末端和附睾管
B.
输精管末端和睾丸输出小管
C.
输精管末端和前列腺排泄管
D.
输精管末端和精囊排泄管
E.
输精管末端和尿道球腺排泄管
【简答题】Lucy, do you mind _____(switch) off the radio?
【单选题】组成射精管的是( )
A.
输精管末端和睾丸输出小管
B.
输精管末端和前列腺排泄管
C.
输精管末端和附睾管
D.
输精管末端和精囊腺排泄管
【单选题】– Lucy, do you mind if I close the window? -- ______________
A.
Yes, of course not.
B.
No, go ahead.
C.
Yes, go ahead.
【单选题】组成射精管的是( )
A.
输精管末端和附睾管
B.
输精管末端和睾丸输出小管
C.
输精管末端和前列腺排泄管
D.
输精管末端和精囊(腺) 排泄管
E.
输精管末端和尿道球腺排泄
【单选题】以下针对缺失值问题的阐述正确的是( )
A.
删就一个字
B.
用中位值填充
C.
用均值填充
D.
具体问题具体分析
【单选题】以下针对缺失值问题的阐述正确的是:
A.
删就一个字
B.
用均值填充即可
C.
用中位数填充即可
D.
具体问题具体分析
【单选题】---Lucy doesn’t mind lending you her dictionary. ---I think she doesn’t, but I ________do so. I’ve already borrowed one.
A.
needn’t
B.
mustn’t
C.
can’t
D.
shouldn’t
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