问题
单项选择题
在承受内力弯矩、剪力和扭矩过程中，桁条式机身蒙皮起的主要作用是：（）.
A.承受大部分的弯矩和剪力
B.承受大部分的弯矩和扭矩
C.承受弯矩、扭矩和剪力
D.承受扭矩和剪力
答案
参考答案：C
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在承受内力弯矩、剪力和扭矩过程中，桁条式机身蒙皮起的主要作用是：（）.
A.承受大部分的弯矩和剪力
B.承受大部分的弯矩和扭矩
C.承受弯矩、扭矩和剪力
D.承受扭矩和剪力
参考答案：C
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| Market is a place which we get food from. My 1 goes there every day. Two 2 ago, I went with her to a 3 near our home. When we went inside, I saw the place was 4 and a lot of people were doing 5 there. It was very noisy because so many people were speaking 6 . The sellers and the people were very 7 . There were many vegetables, fishes, and a lot of meat there. My mother 8 to buy some of them, but there were too many people. We had to wait for some time 9 we bought all the food we needed. Now everything in the market is much 10 than two years ago. | ||||
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