问题
多项选择题
爆破片又称为爆破膜或防爆膜，是一种断裂型安全泄放装置。与安全阀相比，它具有( )特点。
A．泄压反应慢
B．结构简单
C．结构复杂
D．密封性能好
E．适应性强
答案
参考答案：B,D,E
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爆破片又称为爆破膜或防爆膜，是一种断裂型安全泄放装置。与安全阀相比，它具有( )特点。
A．泄压反应慢
B．结构简单
C．结构复杂
D．密封性能好
E．适应性强
参考答案：B,D,E
People use their mouths for many things. They eat, talk, shout, and smile. So there are many expressions about mouth. For example, if you say things about a person, the person will be unhappy and say “Do not bad mouth me.” Sometimes, people say something to a friend or family member that later they regret they hurt that person’s feelings. The speaker might say: “ I really put my foot in my mouth this time.” If this happens, the speaker might feel down in the mouth. Information is spread through the mouth. This is general communication people, like friends talking to each other. “How did you hear about that movie?” Someone might ask. The may be : “Oh, by word of mouth.” A more official way of getting information is through a company or government mouthpiece. Sometimes, a person has a bad or unpleasant with another person. He might say: “It left a bad taste in my mouth.” Or a person might have a very experience, like being chased by an angry dog. He might say: “I had my in my mouth.” Some people have lots of money because they were into a very rich family. You might say such a person “was born with a silver spoon in his mouth. ” And this rich person is the opposite of a person who lives from hand to mouth.
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