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【简答题】
什么是流体的黏滞性?它对流体流动有什么作用?动力黏度 μ 和运动黏度 ν 有何区别和联系?
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【简答题】The doctor asked us to call him during the night in case of ________________.
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【简答题】科学研究方法的特征有哪些？
【单选题】听力原文：W：Doctor Smith asked us to watch that special on the Civil War on TV this weekend．Do you want to come over Saturday night? M：Oh，I'm supposed to help my cousin move then. It's being rebroadcast on...
A.
The program begins on Sunday.
B.
He'll meet the woman on Sunday.
C.
They could watch the program on Sunday.
D.
His cousin arrives on Sunday.
【简答题】Last week we asked our readers to write us funny stories. Bob and Ben sent us very amusing family stories. Dear Family Life, My mother is a career woman, but she never forgets her household duties. On...
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