一般分析扩散系数,考虑两种条件,即恒定表面浓度条件和()。A.恒定总掺杂剂量 B.不

题型:单项选择题

问题:

一般分析扩散系数,考虑两种条件,即恒定表面浓度条件和()。

A.恒定总掺杂剂量

B.不恒定总掺杂剂量

C.恒定杂志浓度

D.不恒定杂志浓度

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阅读理解。

  People in different countries have different hobbies around the world. For example, in America

people's favorite hobby is watching TV in their spare time. It is the main entertainment for American to

watch TV at least one hour in a day. 96% of American see watching TV as their first hobby. The second

one is going to the cinema or doing some sports. Next it is reading or gardening.Except these, fishing is

also a very popular hobby.

   In England,it's quite different.People there like to go to the flea market (跳蚤市场). They like to

go there to see if there is something new. In addition, Englishmen like drinking tea.

  Russians like reading very much. Wherever you go, you will see the people who are reading

carefully. Germans like reading as well. According to a survey, Germans read 11 books on average

in 2006.

1. How many kinds of hobbies that Americans have are mentioned in this article?

A. Four.

B. Five.

C. Six.

D. Seven.

2. What is the first hobby for Americans?

A. Watching TV.

B. Going to the cinema.

C. Doing some sports.

D. Reading.

3. Where do Englishmen like to go in their spare time?

A. Garden.

B. Flea market.

C. Library.

D. Cinema.

4. The people in _____ like reading.

A. Russian and German

B. Russia and Germany

C. America and England

D. England and Germany

5. The people in _____ like drinking tea.

A. America

B. England

C. Russia

D. Germany

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若把人的正常体温36.8℃记为0℃,那么贝贝感冒时的体温38.9℃应记作(  ),体温36.6℃应记作(  )。

题型:单项选择题

衡量一个地区水资源丰歉程度的指标是(    ) 

A.多年降水总量

B.多年降水总量与蒸发量的差值

C.河流径流总量

D.多年平均径流总量

题型:单项选择题

目前在抗休克治疗中缩血管药物的使用原则是()

A.用于休克期血压下降不明显的患者

B.当血压过低通过补液又不能纠正时应暂时使用

C.用于高动力型休克

D.用于过敏性休克

E.用于感染性休克和神经源性休克

题型:单项选择题

通信机房的灭火系统一般采用()。

A.喷淋;

B.气体;

C.泡沫;

D.消火栓。

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