问题
填空题
（）式安全阀应有提升手把和防止随便拧动调整螺钉的装置。
答案
参考答案：弹簧
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（）式安全阀应有提升手把和防止随便拧动调整螺钉的装置。
参考答案：弹簧
Much meaning can be carried clearly with our eyes, so it is often said that eyes can speak. Do you have such kind of ? On a bus you may look at a stranger, but not too long. And he finds that he is being looked at, he may feel uncomfortable. It is the same in daily life. If you are looked at for necessary, you will look at yourself up and down, to see if there is wrong with you. If nothing goes wrong, you will feel with the person who is looking at you that way. Eyes do speak, right? Looking too long at someone may seem to be impolite. But sometimes things are . If a man looks at a woman for more than 10 seconds, it may mean that he wishes to attract her attention, to make her understand-that he loves her. When two people are in a conversation, the will look at the listener from time to time, in order to make sure that the listener does pay attention to what he or she is speaking. Lovers will looking at each other or being looked at for long time, to show something that cannot express. So contact should be done accordion the relationship (关系) between two people and the place where you stay.
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