题目内容
扣件在螺栓拧紧力矩达（）N.m时，不得发生破坏
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[音频]It’s hard to make friends if you stay home alone all the time. Get out of the house and do things that will (1) ________ you in touch with other people. Join a club or play a (2)________. Attend meetings of neighborhood associations or other groups. It’s easier to make friends when you have similar (3)________. Plan things to talk about with people. Find out what's in the (4) ________, listen to the top CDs, learn about what’s new with your favorite TV or movie star.
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