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【简答题】
构件发生剪切变形的同时,往往在其互相接触的作用面间发生 。
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皮皮学刷刷变学霸
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【单选题】—They say there's a new restaurant nearby. —Yes , and it_____for no more than a week. [ ]
A.
has been open
B.
opens
C.
is opening
D.
is opened
【简答题】已知: 298K, 某一元弱酸溶液的 pH 为 3.00 ,将该酸溶液稀释后,其 pH 将() ,解离度将() ,其 K a Ө 将()。
【判断题】光缆的最主要的技术要求是保证光纤在制造成缆、敷设以及在各种使用环境下光纤的传输性能不受影响并具有长期稳定性。其中管道光缆的保护层要求装铠装层,要考虑地面的振动和虫咬等。
A.
正确
B.
错误
【简答题】▲Hong Kong’s pop star Kelly Chan will hold a concert in Hong Kong this month. She has been working on it for two years. She will dance with a group of 40 dancers. Chan is going to wear a dress with qu...
【单选题】选择与句中划线部分意思相同或相近的词或短语。 Class was over and the students came out of the classroom one after another . [ ]
A.
up and down
B.
here and there
C.
by and by
D.
one by one
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