问题
单项选择题
图示多跨梁剪力QDC为（）。
A．M/a
B．-M/a
C．2M/a
D．-2M/a
答案
参考答案：B
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图示多跨梁剪力QDC为（）。
A．M/a
B．-M/a
C．2M/a
D．-2M/a
参考答案：B
| 补全对话 | |
| A: What are you going to do after leaving school? B: I'm thinking about becoming a pilot. That way I would be able to travel. A: 1 B: Of course I do. I like to visit different places, make different friends and learn different things. A: That sounds good. You seem to be very healthy. 2 B: It's just so so. I find it difficult to learn it well. A: What can you do if you are not good at English? B: 3 I'll try to learn it better. 4 A: Maybe I'll try to be a businessman. I'd like to go into business and make some money. B: 5 . A: But I think being busy is better than doing nothing. B: Yes. I agree with you.
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