问题
单项选择题
下列关于锅炉受热面的结构布置的叙述错误的是( )。
A．炉膛的形状和容积大小时锅炉的安全，经济运行有很大的影响
B．水冷壁布置于炉膛的中心
C．水冷壁由水循环回路的上升管组成
D．锅炉的辐射受热面主要指布置在炉膛内的水冷壁管
答案
参考答案：B
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下列关于锅炉受热面的结构布置的叙述错误的是( )。
A．炉膛的形状和容积大小时锅炉的安全，经济运行有很大的影响
B．水冷壁布置于炉膛的中心
C．水冷壁由水循环回路的上升管组成
D．锅炉的辐射受热面主要指布置在炉膛内的水冷壁管
参考答案：B
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| The sound of the rain hitting the windows wakes me up and it sounds just exactly as it did l5 years ago, which reminded me of my girlhood. It was my second day of 1 and it was raining heavily. I could not 2 the habit I had at home, so I fell asleep right at my 3 . I woke up to find myself not in the classroom but carried on Dad's back. We were 4 home. It was the last time I felt 5 to him. After that, he never carried me or hugged me as other fathers did to their children. I was not bothered much by this 6 . I was proud of it. for I felt 7 and "grown up". However,there were times when I felt depressed by not having searched for 8 from him. One day. I was writing Chinese characters as homework. I hated doing this more than anything. Dad came and stood behind me for a moment, 9 me scratching (勾抹) the paper. Then he said,"This kind of writing needs 10 .Your writing is not strong enough. Press harder." I followed his 11 for the next two weeks. but 12 I could see little improvement. I followed my own method-the 13 way. His advice did not improve my writing but our 14 . As I grew older, I found out that he had finished his 15 in Grade 6,which was the highest grade in town then, so he was considered to be a 16 .People used to ask him to write something to put on the walls. but he never felt very useful. He often said to me," As you can see, this family is going to count on (指望) you. We are 17 to improve you anything for your future. You have to get 18 to change the life for yourself." As a result of his 19 , I have 20 it through high school and through college. | ||||
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