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问题 单项选择题

静止阳极X线管，下列哪个是错误的

A．真空度

B．灯丝

C．阳极轴承

D．集射罩

E．阳极靶角度

答案

参考答案：C

解析：静止阳极X线管无阳极轴承，靶面嵌在固定的铜体内。只有旋转阳极X线管有阳极轴承及转子。

阅读理解

Sue and Linda usually go to school by car. They drive past a cinema, a supermarket and a food shop. The food shop is next to the supermarket. Jack and Michael usually go to school by bus. They go past a bank and a post office. The bank is next to the post office. Mary usually goes to work by bike. She rides a bike past a police office, a library and a swimming pool.

小题1:How many people are there in this passage?

A. Five         B. Three           C. Four

小题2:Where is the bank?

A. It’s next to a swimming pool.    B. It’s on the right

C. It’s next to a post office.

小题3:How does Linda go to school?

A. By bike.     B. By bus.      C. By car.

小题4:Where does Sue drive past?

A. A cinema.        B. A post office.   C. A park.

小题5:How does Michael go to school?

A. On foot      B. By bus           C. By bike
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选择题

在实际生活中常常有这样的一种情况出现，即人们对某种事物的存在与否感到难以预料，心中无底时，往往就认为“信则有，不信则无”。这种观点从哲学上说，是认为[ ]

A．世界不是由神创造的，而是由人创造的  

B．存在决定思维  

C．思维是世界的本原，思维决定存在  

D．世界观不同，对事物的看法就不同

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