阅读理解。 The horsepower was first used two

题型:阅读理解

问题:

阅读理解。

     The horsepower was first used two hundred years ago. James Watt had made the world's first widely

used steam engine. He had no way of telling people exactly how powerful it was, for at that time there

were no units for measuring power.

    Watt decided to find out how much work one strong horse could do in one minute. He called that unit

one horsepower. With this unit he could measure the work his steam engine could do.

    He discovered that a horse could lift a 3,300-pound weight 10 feet into the air in one minute. His

engine could lift a 3,300 pound weight 100 feet in one minute.

    Because his engine did ten times as much work as the horse, Watt called it a ten-horsepower engine.

1. Watt made the world's first ______.

A. train        

B. engine      

C. steam engine        

D. bus

2. Watt wanted to find a way ______.

A. to lift a 3,300-pound weight      

B. to show how useful his steam engine was

C. to tell people exactly how powerful his steam engine was

D. to measure the weight of his steam engine

3. What does one horsepower mean? It means ______.

A. one horse's power            

B. what one strong horse can do in one minute

C. what one horse can do in a day  

D. what work one horse can do as much as possible

4.  Which is not true? ______. 

A. Watt decided to find out how much work one strong horse could do in one minute

B. Watt decided to make the world's first widely used horse engine

C. He wanted to find a way to tell people exactly how powerful his engine was

D. to  measure the weight of his steam engine

5. The best headline for the article is ______. 

A. Horsepower                

B. Watt's steam engine

C. A ten-horsepower engine      

D. The beginning of horsepower

考点:历史文化类阅读
题型:阅读理解

这属于哪一类标志?

A、警告标志
B、禁令标志
C、指示标志
D、指路标志

题型:阅读理解

做口腔护理时,如有活动性义齿一般先取下面义齿,后取上面义齿,用冷开水冲洗刷净,浸于清水中保存。

题型:阅读理解

胆道闭锁Ⅱ型的剖腹探查所见()

A.胆囊、胆囊管、胆总管闭锁,肝管内含胆汁 

B.肝外胆道系存在,胆囊内含胆汁,造影剂在十二指肠显示 

C.胆囊、朋总管存在,胆囊内无胆汁肝管闭锁 

D.胆总管囊性扩张 

E.肝外胆道系存在,位于胆总管远端与十二指肠交界处可见肿大淋巴结数个

题型:阅读理解

任何时候想得到关于当前打开菜单或对话框内容的帮助信息,可以______。

A.按F1键

B.按F2键
C.使用菜单帮助
D.单击工具栏帮助按钮

题型:阅读理解

拖带挂车转弯比不拖带挂车行驶时()

A.需缩小转弯半径

B.适当增加转弯半径

C.不需缩小或加大转弯半径

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