题目内容
凡是构件一定都是由两个以上零件组成的。
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自行车的轮子是个构件，轮子上的钢丝、螺母、钢卷等都是零件。
机器与机构、构件与零件的联系与区别。
Listen to the long conversation and fill in the blanks with what you hearAfter 13 years of marriage, the woman wants to 1)___________ ,claiming that he is 2)___________. When asked for the specific grounds for divorce, she gives these reasons. First, he keeps 3)___________ and the family has had to move four times in 13 years. But she wants 4)___________ for her children and herself. Second, although he is playing the 5)___________ They only live near the 6)___________ . Her children are being teased by other children for not dressing in good clothes. Also they have to live in a small 7)___________ and drive an old car, though it still runs. Worse still. The husband 8)___________ her, though she admits that she also yells at him and 9)___________ . As for the divorce arrangements, the woman will give her husband only visitation rights instead of joint custody. Moreover, the woman will demand 10)___________ of all they have and large support payments.
若将受扭空心圆轴的内、外直径均缩小为原尺寸的一半，则该轴的最大切应力应是原来的（）倍。
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