单项选择题：根据规定，液化石油气气化站的防雷接地电阻不应大于（）欧姆。A、4 B、8 C、10

题型：阅读理解

Long ago, operation usually had to be done while the sick man could feel everything. The sick man had to be held down on a table by force while the doctors did their best to save him. He could feel all the pain

if his leg or arm was being cut off, and his fearful cries filled the room and the hearts of those who

watched.

Soon after 1770, Josept Priestley discovered a gas which is now called "laughing gas". Laughing gas

became known in America. Young men and women went to parties to try it. Most of them spent their time laughing, but one man at a party, Horace Wells, noticed that people didn't seem to feel pain when they

were using this gas. He decided to make an experiment on himself．He asked a friend to help him．

Wells took some of the gas, and his friend pulled out one of Wells' teeth. Wells felt no pain at all.

As he didn't know enough about laughing gas, he gave a man less gas than he should have. The man

cried out with pain when his tooth was being pulled out.

Wells tried again, but this time he gave too much of the gas, and the man died. Wells never forgot this

terrible event.

1. Long ago，when the sick man was operated on, he ______.

A. could feel nothing

B. could not want anything

C. could feel all the pain

D. could do anything

2. Using the laughing gas, the people did not seem to ______.

A. be afraid of anything

B. feel pain

C. want to go to the parties

D. be ill

3. If a man took less laughing gas than he should have when an operation went on, he ______.

A. felt nothing

B. felt very comfortable

C. still felt pain

D. would die

4. One who took too much of the laughing gas ______.

A. would laugh all the time

B. would be very calm

C. would never feel pain

D. would die.

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题型：单项选择题

大陆桥运输中作为承运人与托运人之间运输合同的证明的单证是______

A．集装箱装货单
B．联运提单
C．国际铁路货物联运运单
D．联运合同

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题型：单项选择题

下列叙述有误的一项是( )。

A．建设项目投资目标的形成和投资的实现是经过不同阶段完成的
B．各阶段相互制约，前者控制后者，后者补充修正前者
C．投资估算是项目的总投资控制指标
D．批准的施工概算是项目投资控制总目标，项目竣工决算是项目实际投资额

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题型：单项选择题

In June of 1973, nine whales beached on the Florida coast. Beaching means swimming out of the ocean onto the beach, and usually dying there. No one knows why they do it, but a number of whales beach themselves every year. Some people think beaching is an accident.
Perhaps the whales get confused. Scientists who studied the beaching of three dozen whales in Australia think the whales may have been confused by loud noises, Whales can tell where they are by sounds. They send out sounds and listen as they travel past or bounce off objects. Two days before these thirty-six whales beached, loud guns had been fired for two hours. The loud sounds may have confused the whales. Their confusion might have caused them to wander into low water.
Whatever the reason whales beach, it is a sad event. People try to save them, but very few beached whales live. One whale that was rescued from beaching in Florida lived for forty-five days. That is the longest a beached whale has ever survived. And it lived that long only because it got attention from doctors.
All over the world, scientists rush to whale beachings as soon as they hear about them. They hope to learn why whales beach, and how to save them.

Whale beachings are sad events because ______.

A．people know the whales are going to die

B．the whales have to be carted away and buried

C．the whales cannot be used as food

D．no one can use the beach on those days

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题型：填空题

线路标志在单线上（）向设于线路左侧。

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根据规定，液化石油气气化站的防雷接地电阻不应大于（）欧姆。A、4 B、8 C、10

题目：

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