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【简答题】
如图所示系统，其大径d1 = 45mm ，液体在流速为0.5m/s ，小径d2 =19mm ，从1-1到2-2断面的阻力损失为15J/kg ，则2-2断面处的流速为__________m/s；是根据__________ 方程而得。【图片】
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【单选题】How can Maslow's theory help us?
A.
Help us achieve our goal and give us confidence.
B.
Help us assess how a job will satisfy our needs.
C.
Help us find a good job which gives us passion for things.
【单选题】He is a (true) friend (of mine), whom I can always (depend) whenever I (get into) trouble.
A.
true
B.
of mine
C.
depend
D.
get into
【单选题】—Can you come to help us with our work by 5 o'clock? —I don't know if I can help; ________. [ ]
A.
that's a pity
B.
it all depends
C.
you are welcome
D.
that's a pleasure
【单选题】He changed so much that only when I looked closely________he was exactly my long lost friend.
A.
I realized
B.
did I realize
C.
I did realize
D.
realized I
【简答题】In the first paragraph, the writer tells us that statuses can help us ________. A) determine whether a person is fit for a certain job B) behave appropriately in relation to other people C) protect ou...
【单选题】'Help us to help you' means '______.'
A.
Sometimes your help is not necessary
B.
You can make it easier for us to help
C.
Usually we cannot help you
【单选题】今年参加十一届全国人民代表大会第四次会议的2923多名人大代表，包括党政机关领导干部、工人、农民、知识分子、解放军指战员和其他社会主义劳动者、社会主义事业建设者、拥护社会主义的爱国者、拥护祖国统一的爱国者等。这表明我国的人民民主具有（）。
A.
真实性
B.
广泛性
C.
阶级性
D.
社会性
【简答题】句型转换。 1. I have got an American friend. (用he 代替I改 写句子 ) He _____ _____ an American friend. 2. My grandfather and my grandmother are fine. (对划线部分提问) _____ _____ your _____ ? 3. Tony has got a new bike....
【简答题】I tell him everything, for he is a good friend of me.
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