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【单选题】
承受作用(荷载)的钢筋混凝土梁的斜截面破坏与弯矩和剪力的组合情况有关,这种关系通常用( )来表示。A.
剪跨比
B.
集中力
C.
均布力
D.
弯矩
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【简答题】淡竹叶的功效有 、 。
【简答题】VTS通过发布消息的方式提供服务，其发布的消息中不包括（ ）。
【简答题】VTS通过发布消息的方式提供服务，其发布的消息有：信息、建议和（ ）。
【单选题】Listen again to part of the conversation. Then answer the question. Select the sentence that best expresses how the woman probably feels.
A.
I'm frustrated because I don't understand.
B.
I'm glad that you know so much about music.
C.
I don't agree with what you are saying.
D.
I wish that I knew how to play the drums.
【简答题】妊娠后血容量开始增加的时间和到达高峰的时间分别是
【单选题】Listen again to part of the conversation．Then answer the question. Why does the professor say this:
A.
He is thinking about what he will say in the recommendation.
B.
He wants to know the student's opinion of his psychology class.
C.
He needs the student's help in solving a difficult problem.
D.
He would like to try something that he has never done before.
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