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【单选题】
设某段梁承受正弯矩的作用,则靠近顶面和靠近底面的纵向纤维A.
分别是缩短、伸长的;
B.
分别是伸长、缩短的
C.
均是伸长的
D.
均是缩短的
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举一反三
【单选题】It took me about an hour to ________ my intention ________ her.
A.
get, across
B.
put, across
C.
get, across to
D.
put, across to
【简答题】2 2×4 + 2 4×6 + 2 6×8 + 2 8×10 + 2 10×12 ．
【单选题】听力原文：M: You should have seen the line at the housing office. It took me an hour to make my dormitory deposit for next year. Have you made yours yet? W: No, I'm not sure I'm going to. M: There's not mu...
A.
When to move.
B.
Where to live the following year.
C.
How much time to spend at home.
D.
Whose house to visit.
【单选题】听力原文：M: You should have seen the line at the housing office. It took me an hour to make my dormitory deposit for next year. Have you made yours yet? W: No, I'm not sure I'm going to. M: There's not mu...
A.
When to move.
B.
Where to live the following year.
C.
How much time to spend at home.
D.
Whose house to visit.
【简答题】It took me about half an hour _________ (do) my homework last night.
【简答题】根据句意及首字母填写所缺单词。 小题1:Can I have a glass of orange j________? 小题2:It took me about an hour to f_________my homework. 小题3:The maths problem is very d___________, I can’t do it. 小题4:I’m very tired after a...
【单选题】听力原文：M: You should have been in the line at the housing office. It took me an hour to make my dormitory depose for next year. Have you made yours yet? W: No, I'm not sure I'm going to. M: There's not ...
A.
when to move
B.
where to live the following year
C.
how much time to spend at home
D.
whose house to visit
【单选题】It took me about an hour ______ the letter lastnight.
A.
writing
B.
to write
C.
wrote
D.
write
【简答题】已知对称三相正弦交流电路中一组△形连接负载的线电压 V,线电流 A,求各相负载的相电压及相电流的相量,作出相量图,并求每相负载的复阻抗。
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