下列关于锅炉受热面的结构布置说法不正确的是() A.锅炉的辐射受热面主要指布置在炉膛

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问题:

下列关于锅炉受热面的结构布置说法不正确的是()

A.锅炉的辐射受热面主要指布置在炉膛内的水冷壁管

B.水冷壁由水循环回路的上升管组成

C.水冷壁布置于炉膛的中心

D.炉膛的形状和容积大小对锅炉的安全、经济运行有很大的影响

考点:注册设备工程师(暖通空调)暖通工程师基础考试暖通工程师基础考试题库
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-----What do you remember Alexander Graham Bell as?

------As ______ inventor of ______ telephone.   

A.an; /

B.the; a

C.the; the

D./; the

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“上海小楼,南湖游船,开天辟地,谱写新篇”描述的历史事件是

A.中国同盟会的成立

B.南京国民政府的成立

C.中 * * 党的成立

D.中华人民共和国的成立

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第三部分:阅读理解(共20小题;每小题2分,满分40分)

阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。

“Dad! He took a book without paying!” I yelled .

My father looked surprised. Before the boy could say anything, his mother grabbed his arm and shook it. “Is it true? You stole? Tell me!”

Everyone was quiet. The boy began to cry, and he nodded his head. He pulled out the comic book (漫画书) from under his shirt. 

“Oh, Mr. Kim. I am sorry! My Ted made a big mistake!” Mrs. Diaz told my father. She tried to take the comic book, but Ted wouldn’t let go.

“It’s OK. He can keep it,” my father said with a smile.

“Oh no,” Mrs. Diaz said. “Let me pay right now ...” She dug in her purse. “How much?”

“Three seventy-five.”

Mrs. Diaz’s eyes widened, and she dug deeper. I saw her mouth make a small line. “Three seventy-five?” she asked.  

“It’s OK. You can pay later,” my father said.

“No,” Mrs. Diaz said. She kept looking in her purse. “I have money here.”

I felt bad for yelling, for I realized that Ted had tried to steal the comic book because he didn’t have the money. Maybe the boy could have a job, I thought.

I had an idea.

“What if he worked with me?” I asked. They turned to me.

I said, “He can work with me to pay for the comic book.”

“Good,” my father said smiling at me. Mrs. Diaz nodded. She turned to her son, “You hear? You will work and buy the comic book!”  

“Yes, Mama,” Ted said, hanging his head.

As they left, Ted looked back, and though he still seemed sad, he stuck out (伸出) his tongue at me.

Ted has been working here for two weeks. He has paid for the comic book, but my father says he is such a good worker that he can work with me as long as he wants. We are friends now. 

56. Where did the story most probably take place? 

A. In a classroom.                           B. In a supermarket.  

C. At a bookstore.                       D. At a library. 

57. By saying “but Ted wouldn’t let go” in Paragraph 4, the author means Ted ______.

A. took the book by mistake      B. wanted to keep the book

C. didn’t want to go home        D. didn’t think he was wrong

58. From the underlined sentences in the eighth paragraph, we may infer that Mrs. Diaz ______. 

A. didn’t think her son stole the book

B. had been out of work for a long time

C. forgot to take money with her that day

D. couldn’t afford to pay for the book

59. In the last paragraph, what does the author mainly tell?

A. His idea was successful.        B. Ted didn’t like the job.

C. He liked Ted very much.        D. Ted was a naughty boy.

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曲线地段外股应使用标准长度钢轨,内股应用()调整钢轨联结位置。

A.6m以下短轨

B.缩短轨

C.4.5m以下短轨

D.特制缩短轨

题型:单项选择题

正常人清晨空腹血糖浓度为(以mg/dl计)()。

A.60~100

B.60~120

C.70~110

D.80~120

E.90~120

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