适宜用胎头吸引术的情况是()。 A.第二产程延长 B.严重头盆不称 C.宫颈口未开全

题型:单项选择题

问题:

适宜用胎头吸引术的情况是()。

A.第二产程延长

B.严重头盆不称

C.宫颈口未开全

D.胎先露棘上3cm

E.额先露

考点:妇产科护理(医学高级)妇产科护理学综合复习题妇产科护理学综合复习题题库
题型:单项选择题
若向量
a
=(
1
2
,-
3
2
)
|
b
|=2
3
,若
a
•(
b
-
a
)=2
,则向量
a
b
的夹角为(  )
A.
π
6
B.
π
4
C.
π
3
D.
π
2
题型:单项选择题

阅读理解

       London Subway, or The Tube,is the quickest and easiest way to get around London. Many English

people like it. It has 275 (63 in the centre of London) stations across the city. You are always near to a

tube station. Most people in London use a tube. It is very easy and comfortable. There are 12 Tube Lines

in London. London Subway on all lines runs every few minutes from 05 :30 to 00:30 from Monday to

Saturday and runs from 07 :30 to 23 :30 0n Sunday. People can't smoke(吸烟) on the train because it's

not good for passengers. The subway is the visitors' first choice. It's popular with people in London.

1. Which is the fastest way for visitors to travel around London? 

A. By taxi.              

B. By subway.

C. By car.                

D. By plane.

2. How many days does London Subway work from 05 :30 to 00 :30 in a week?

A. Four days.            

B. Five days.

C. Six days.              

D. Seven days.

3. When does the first train of London Subway start on Sunday?

A. At 00 :30.                

B. At 05 :30.

C. At 07 :30.                

D. At 06 :30.

4. How many subway stations are there in the centre of London?

A. 36.        

B. 63.        

C. 12.        

D. 275.

5. What is the main idea of the passage?

A. The introduction to London Subway.

B. The history of London Subway.

C. The time of London Subway.

D. The good of London Subway.

题型:单项选择题

下列哪些属于气能固摄的范围?()

A.泪液

B.尿液

C.汗液

D.粪便干稀度

E.涕

题型:单项选择题

兆欧表由测量机构和高压电源组成。高压电源多采用手摇发电机,输出电压有()几种。

A、300V

B、500V

C、1000V

D、2500V

E、5000V

题型:单项选择题

不合理利用和浪费消费资源的结果是()。

A.环境恶化

B.动植物减少

C.资源枯竭

D.垃圾增加

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