易熔塞属于“熔化型”（“温度型”）安全泄放装置，它的动作取决_爱下问搜题

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问题单项选择题

易熔塞属于“熔化型”（“温度型”）安全泄放装置，它的动作取决于容器壁的温度，主要用于中、低压的小型压力容器，在盛装液化气体的（）中应用更为广泛。

A．钢瓶

B．橡胶容器

C．塑料容器

D．玻璃瓶

答案

参考答案：A

解析：

易熔塞属于“熔化型”(“温度型”)安全泄放装置，它的动作取决于容器壁的温度，主要用于中、低压的小型压力容器，在盛装液化气体的钢瓶中应用更为广泛；

解答题

，则乙是甲的2倍．______．

完形填空

完形填空（共20小题；每小题1分，满分20分）
阅读下面短文，从短文后各题所给四个选项（A、B、C、D）中选出最佳选项，并在答题卡上将该项涂黑。
One day last month after I received my salary, I went shopping with my little son.   36   in the crowded store, I had my pocket   37  and my whole salary was gone with it. I was so angry that I almost lost   38  of myself. What could I do? We were not very   39 . The money was really not a small sum for my family. It would   40  our life greatly. How could I tell my wife?
I felt very sad and even   41  for losing the money when I got home. To make up for my   42  mistake, I gathered all my strength to give our house a thorough cleaning and then   43  a wonderful meal and cooked a special dish my wife loved to   44  her.
When she came home, I   45  a smile to greet her. She was   46  to see the neat house and   47  meal. We sat at the table and began to eat. I told my story   48 . She did not respond. It was as if she had not heard my words.
“I’ve   49  my salary,” I murmured to her again.
“I see,” she did not shout at me as I had   50 . She didn’t lose her   51 . So I was afraid she was trying hard to   52  her anger.
A moment later, my wife was still   53  and seemed to be enjoying her favorite dish. At last I could not help asking, “I’ve lost the money. Why not shout at me?” She   54  her eyes, looking at me and said, “Oh, on the contrary, I’m thinking about how to comfort you. It’s the   55  who is to blame.

A．Fortunately

B．Unfortunately

D．Surprisingly

B．unforgivable

C．unforgettable

D．unbelievable