可用作弹道导弹的发动机是()。 A.涡轮喷气发动机 B.涡轮风扇发动机 C.冲压喷气

题型:单项选择题

问题:

可用作弹道导弹的发动机是()。

A.涡轮喷气发动机

B.涡轮风扇发动机

C.冲压喷气发动机

D.火箭发动机

考点:军事理论军事理论综合练习军事理论综合练习题库
题型:单项选择题

阅读理解。

     Trees are useful to man in three very important ways. The first important way is that they provide

man with food, wood and other products (产品). Trees provide not only man with food, but also many

animals with food. Without trees many animals can not live on the earth. It's not easy for man to live on

the earth, either.

     The second important way is that trees give us shade. On a hot summer day, people are eager (渴望)

to have a rest under the shade of a tree after they have walked a long way. You can imagine (想象) how

important the shade of a tree is to man and to animals.

     The third important way is that trees help to prevent drought (旱灾) and floods. However, in many

parts of the world, man has not realized (意识到) the third important way. He has cut trees down in large

numbers. In the end, he finds that he has lost the best friends he had.

1. Trees are important to man in _____ ways. [ ]

A. two

B. three

C. four

D. five

2. Which sentence is TRUE? [ ]

A. Trees give food to both man and animals.

B. Trees only provide animals with food.

C. Trees give food to neither man nor animals.

D. Trees only provide man with food.

3. On a hot summer day, _____. [ ]

A. only people need the shade of trees

B. only animals need the shade of trees

C. animals don't need any shade

D. both people and animals need the shade of trees

4. In many parts of the world, man has not realized that trees help to _____. [ ]

A. give us food

B. give us shade

C. prevent drought and floods

D. give us wood

5. In this story, the underlined word "He"means _____. [ ]

A. teacher

B. man

C. worker

D. boy

题型:单项选择题

女性,30岁,间断尿频、尿痛、尿急1年,尿沉渣白细胞30~50/HP,但多次尿培养检查均无细菌生长,最可能是患

A.肾结核

B.急性肾盂肾炎

C.急性膀胱炎

D.慢性肾盂肾炎

E. * * 综合征

题型:单项选择题

在房地产估价中,建筑物折旧=建筑物重新购建价格-()。

A.房地产价格

B.建筑物开发成本

C.土地价值

D.建筑物市场价值

题型:单项选择题

在人身意外伤害保险实务中,保险人区分和把握不可保意外伤害的要点是()

A、如果承保,将直接影响保险公司的承保质量

B、如果承保,将间接影响保险公司的社会信誉

C、如果承保,将立即影响保险公司的财务稳定

D、如果承保,将损害公众利益或违反法律要求

题型:单项选择题

人员乘坐人车时,必须遵守听从()的指挥,开车前必须关闭车门或者挂上防护链。

A.司机

B.跟车工

C.司机及跟车工

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