如何区别最小实体尺寸和最小实体实效尺寸?

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问题:

如何区别最小实体尺寸和最小实体实效尺寸?

考点:工程测量工考试工程测量工技师工程测量工技师题库
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阅读理解。

     There once lived in China a very foolish king and queen. One day the queen had a baby daughter.

When they saw their baby, they both cried out, "My goodness! How small it is! It's hairless and

toothless! It's a monster!" They sent for all the doctors in the country and ordered them to prepare some

medicine for her.

     "When she drinks your medicine, she must grow to the right size and have hair and teeth," the king

said, "If you don't do this, you'll have a beating."

     The doctors thought it impossible, but they dared not say anything against the king's order. Just then

and old doctor stepped forward. "Oh, we shall certainly obey your order," he said, "but it takes time.

We have to dig a mineral from the KunLun Mountains when the snow melts for the second time. The

snow melts on those mountains only once in six years. So we need twelve years."

     At last the king agreed and the doctors took away the little princess. On her twelfth birthday, they

brought her back to her parents with long black hair and beautiful teeth. The king and queen were very

happy and gave the doctors expensive presents.

1. Which of the following words makes the sentence untrue? The baby was ________.

A. Toothless    

B. hairless    

C. unusual    

D. small

2.The doctors would be beaten if ________.

A. the baby daughter didn't drink their medicine  

B. they refused to obey the king's order

C. the baby daughter grew to the right size      

D. the baby daughter became a monster

3.The old doctor wanted to keep the king's daughter for twelve years because ________.

A. they needed a lot of different plants          

B. they need a lot of different minerals

C. this would give the baby time to grow up

D. they had to dig a mineral the snow melted for the second time

4.The doctors thought it impossible ________.

A. for them to change the king's order

B. for them the prepare the medicine in twelve years

C. for the small baby to drink the medicine

D. for them to make the baby have teeth and hair or grow teeth at once

5.________ the king wouldn't have given them expensive presents.

A. Had the doctors not brought back a beautiful girl

B. If the doctors hadn't found the minerals

C. Had the doctors not been able to prepare the magic medicine

D. If the daughter were still a monster twelve years later

题型:问答题 简答题

定态流动的流体在流动过程中,不随空间位置变化的物理参数是()。

A.流速 

B.流量 

C.黏度 

D.压力

题型:问答题 简答题

管道的各项生产活动都应符合国家和地方()保护法规的要求。

A、生产、经营

B、安全、生产

C、安全、环境

D、防火、自然

题型:问答题 简答题

对于寿命期相同的互斥方案,比选方法正确的有()。

A.各备选方案的净现值大于等于零,并且净现值越大,方案越优

B.各备选方案的净现值率大于等于1,并且净现值率越大,方案越优

C.各备选方案的内部收益率大于等于基准收益率,并且内部收益率越大,方案越优

D.各备选方案产出的效果相同或基本相同,可用最小费用法比选,费用越小,方案越优

E.各备选方案的净年值大于等于零,并且净年值越大,方案越优

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