测试断路器导电回路电阻必须等待测试仪显示已完全放电才能断开测试回路。（）

阅读理解。

     Imagine one day the water taps (水龙头) in your house stop running. You have to pay a lot of money.

to buy water from shops. And still there isn't enough water for everyone. Your mother has to save the

family's shower water to use for washing clothes. Would you be able to stand that kind of life?

     Probably not. But that is what kids in Yemen (也门) are experiencing (经历). According to a report,

the capital, Sana, will run out of drinking water as early as 2025.

     Because of the water shortage (短缺), the Yemen government often cuts the water supply (供应).

Hannan, an 18-year-girl, tells the Teens, "In a good week we'll have a water supply all week. But then

the next week there will be water only for a day or two."

     Hannan says only rich people have enough water to use. They can buy water from the shops or from

the water trucks. Private (私人的) companies own the trucks, They travel around the city every day to

sell water — at very high prices.

     "A lot of people can't pay for it," she says.

     The government is thinking of making use of seawater. But it will cost a lot and it may not happen

soon enough to help the people of Yemen.

1. How old is Hannan?

A. She is eight.

B. She is eighteen.

C. She is seventeen.

D. She is seven.

2. The underlined word "that" means _____.

A. buying water from shops

B. having enough drinking water

C. suffering (忍受) from water shortage

D. washing clothes with used water

3. From the passage, we know that _____.

A. the people of Yemen don't have to worry about water

B. people in Yemen have no water to use during a bad week

C. Sanna will have no drinking water in 10 years

D. private companies make much money by selling water

4. The Yemen government _____.

A. may try to make use of seawater

B. does nothing about the water problem

C. only cares about rich people's lives

D. may solve the problem soon

5. The writer wants to tell us _____.

A. not to use seawater

B. not to waste water

C. to drink less water

D. to sell water to Yemen

干酪性肺炎病人的痰颜色常是（）

A.黄绿色

B.铁锈色

C.粉红色

D.棕红色

E.棕褐色

男性，38岁。突发撕裂样胸背部痛伴大汗，心率100次/分，右上肢BP100/60mmHg，左上肢BP150/70mmHg。听诊闻及颈部血管杂音，胸骨左缘第3～4肋间叹气样舒张期杂音。心电图示窦性心律，Ⅱ、Ⅲ、aVF导联T波倒置。X线胸片示上纵隔稍宽。经服用硝酸甘油疼痛未缓解。如果诊断得到证实，下一步的针对性治疗措施是

最可行而有价值的检查是（）

A.床旁超声心动图检查

B.胸部CT检查

C.冠状动脉造影

D.心肌酶检查

E.以上都不是

肺心病在心电图检查时，有下列哪些改变（）

A.心脏顺钟向转位

B.V1导联R／S≥1

C.RV1+SV5＞1.05mV

D.Ⅱ、Ⅲ、avF导联高尖P波

E.QRS低电压