问题
单项选择题
通用压力机按（）可分为单点、双点、四点压力机。
A.连杆的数量
B.滑块的数量
C.滑块与工件接触的点数
D.工作台的数量
答案
参考答案：A
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通用压力机按（）可分为单点、双点、四点压力机。
A.连杆的数量
B.滑块的数量
C.滑块与工件接触的点数
D.工作台的数量
参考答案：A
It is a happy thing for people to have a good body. Do you want to keep 1 ? Exercise often, please. If you usually go to work 2 your car, from now on(从现在起)you should go to work by bike or 3 . If you always get up 4 in the morning and only eat lunch and dinner every day , I think you should 5 the clock to wake(醒) you up early and do some morning exercises 6 , then have your breakfast. Fresh（新鲜的） air and a big good breakfast can make you feel happy. Do you like to eat 7 , for example, potato chips, hamburgers or hot dogs. Of course, they are 8 . But I think you should eat more fruit and 9 . Because they are 10 food. Too much junk food is not good for you .
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