有一个油罐,把油灌满需要15个小时,若放掉一满罐油需要20个小时,现在先往这种空罐里

题型:单项选择题

问题:

有一个油罐,把油灌满需要15个小时,若放掉一满罐油需要20个小时,现在先往这种空罐里灌油3个小时之后再关掉进油管,然后放掉油罐中的油,那么需要多长时间将油放完()

A.11

B.20

C.4

D.15

考点:国家公务员行政职业能力测试行政职业能力测试
题型:单项选择题

一把折扇,把它慢慢打开,张开的角度越来越(    )。

题型:单项选择题

不属于慢阻肺呼气训练的是()

A.仰卧位作两下肢屈髋屈膝,两膝尽量贴近胸壁的训练

B.仰卧位,腹部放置沙袋作挺腹训练(腹部吸气时隆起,呼气时下陷)

C.将点燃的蜡烛放在口前10cm处,吸气后用力吹蜡烛,使蜡烛火焰飘动

D.采用口径可以调节的呼气管,在患者可接受的前提下,将吸气阻力增大

E.用两个有刻度的玻璃瓶,装入水。将两个瓶用胶管连接,在其中的一个瓶插入吹气用的玻璃管,另一瓶插入一个排气管,用吹气管吹气,使另一个瓶的液面提高30mm左右

题型:单项选择题

小刚为了研究地窖中气体的成分,收集了甲、乙两瓶气体.他先将放有足量白磷的燃烧匙伸入甲瓶(如右图),用放大镜聚焦阳光,使白磷燃烧,瓶里充满白烟.再将甲瓶倒放水中,松开夹子,结果流入的水约占瓶子容积的

1
10
.再往乙瓶中倒入少量澄清石灰水,振荡,发现马上变浑浊.请回答:

(1)该实验说明地窖中的气体含有______、______.

(2)他将该气体与空气的成分做了比较后得出的结论是:______.

题型:单项选择题

某企业为增值税一般纳税人,外购一批原材料,实际支付的价款为1000元,支付增值税170元,取得增值税专用发票,同时发生运杂费50元,入库前的挑选整理费30元,则原材料的入账价值为()元。

A.1080

B.1100

C.1610

D.1000

题型:单项选择题

阅读理解

     In Yemen, you always see one type of vehicle on the road:the water truck.They travel mountain roads

and cross deserts to bring Yemenis the goods more valuable than oil.It is one that only the rich can afford, with the supply regularly  being cut off.Others must rely on scarce rain or charity to  fight thirst.

     Experts say Yemen is going to be the first country in the world to run out of water.The capital, Sanaa, will run out of drinking water as early as 2025, says a report by the World Bank.

     Hannan, an 18yearold from Lahej, said that only the rich could prepare for cuts in supply."In a good

week we'll have a water supply all week but then the following week there will be water only for a day or

two, " she said.

     She and her husband, a factory worker, pay 3,000 riyals (99 yuan) for a week's supply of water

from a touring water  truck when the taps run dry.With an income of only 20,000 riyals (660 yuan) a

month, this means the family often spend half their money on water.

     "There are a lot of people who can't afford it and they have to rely on their neighbors to help, " she

said.

     The average person in Yemen survives on onefifth of what the World Health Organization considers

to be enough water.

     In Taiz, in the south, tap water is available only once every 45 days.In the mountainous Malhan district

in the north, women and children climb a 1,500m mountain to collect water from a spring, often in the

small hours to avoid long queues.

     Yemen is located in Southwest Asia, bordering the Arabian and Red Sea.Yemeni people have lived

on scarce water supplies for thousands of years but that problem has been made serious by conflict in the

area, the fastgrowing population and the use of water to grow a drug called qat.With one of the world's

highest rates of population growth-3.46 percent, Yemen is the poorest Arab country.

     The government is considering desalinating (淡化) seawater, but this would be expensive and it may

now be too late.The only other solution is to cut down on farming, but that means importing even more

food.

1. The passage aims to________.

A. analyze the reasons why Yemen lacks water

B. suggest some solutions to the water issue in Yemen

C. present how serious the water problem is in Yemen

D. encourage the world to help Yemenis who are suffering from water shortages

2. When Hannan said that only the rich could prepare for cuts in supply, she meant that________.

A. rich people drank more water than the poor

B. rich people could buy water from the water trucks if there was a water supply cut

C. she had a rich neighbor who often helped her during water supply cuts

D. the rich were not affected by water supply cuts

3. Which of the following may be a reason why Yemen is short of water?

A. The country has had no rain for a long time.

B. The population of Yemen is growing fast.

C. The government has failed to reduce farming.

D. People can't afford the water from government water trucks.

4. The best title for the passage is "________".

A. Never take water for granted

B. The water truck-the commonest sight in Yemen

C. The first country to run out of water in the world

D. No water for Yemen

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