试题与答案

转化停车过程中()。A、先进行氮气循环降温,再进行蒸汽钝化和蒸汽降温 B、转化气不能

题型:单项选择题

题目:

转化停车过程中()。

A、先进行氮气循环降温,再进行蒸汽钝化和蒸汽降温

B、转化气不能并入转化炉中做燃料气

C、蒸汽钝化结束,即可停锅炉给水系统

D、在蒸汽钝化降温过程中,当E3后烟气温度小于450℃,即可停工艺水系统

答案:

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参考答案:A解析:我国根据具体情况增加的疾病是登革热。

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题型:阅读理解

阅读理解。

     D Look, this is my classroom. It's big and bright (明亮的). In the front, there is a big teacher's desk. On

the teacher's desk, there is a box of chalk. In the teacher's desk, there is a computer. There are thirty-one

desks and thirty chairs in it. Behind each chair, there is a bag. There are four big and clean windows in the

walls of our classroom. And on the front wall there is a red flag (旗帜). There is a big TV on the front wall,

too. Our classroom is on the first floor in the teaching building. On this floor there are three classrooms and

two teachers' offices. And on the second floor, there are three classrooms and two teachers' offices, too. On

the ground floor, there is a reading room, a library and two classrooms.

1. There are _____ students in our class.

A. thirty

B. thirty-one

C. sixty-one

D. no

2. There are _____ classrooms in our school.

A. three

B. two

C. eight

D. four

3. There are _____ floors in the teaching building.

A. three

B. two

C. eight

D. four

4. There are _____ teachers' offices on the ground floor.

A. one

B. two

C. three

D. no

5. Where is the computer in our classroom?

A. On the teacher's desk

B. In the teacher's desk

C. On the front wall

D. In the front wall

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