问题
单项选择题
图所示结构中各构件的自重不计，已知：力偶矩的大小m=60kN·m，其转向为顺时针向；Q=60kN，方向铅直向下；
，方向如图示。支座A的反力沿水平和铅直方向的分力XA、YA的大小分别为（）。
A.
B.
C.
D.
答案
参考答案：D
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图所示结构中各构件的自重不计，已知：力偶矩的大小m=60kN·m，其转向为顺时针向；Q=60kN，方向铅直向下；，方向如图示。支座A的反力沿水平和铅直方向的分力XA、YA的大小分别为（）。
A.
B.
C.
D.
参考答案：D
| 阅读理解 | ||||||
1. The passage is written in order to . A. give some advice on spending holidays B. tell you how to spend holidays in Canary Islands C. attract more tourists to Canary Islands D. introduce the customs in Canary Islands 2. The passage mainly aims at . A. Chinese students studying in the USA B. English people C. Australians living in China D. Canadians 3. It can be known from the passage that . A. the people in Canary Islands don't like travelling B. the Canaries Jazz Festival takes place in spring C. English people also celebrate the Canaries Jazz Festival D. tourists are likely to watch some celebrations in Canary Islands 4. We can infer that"WOMAD"is probably the name of . A. an island B. a festival C. a political organization D. a musician |