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问题 单项选择题

颈椎双斜位片在实际拍摄中，一般让被检者的身体冠状面与暗盒呈多大角度即可

A．10°
B．20°
C．30°
D．45°
E．65°

答案

参考答案：D

解析：让患者的冠状面与暗盒呈45°角，颈椎椎间孔显示最佳。

填空题

用所给动词的适当形式填空。

l. Mr. Brown was disappointed to see the washing machine he had_____ (repair)went wrong again.

2. Children's being addicted to the Internet gets their parents _____ (worry).

3. Many feared that Columbus would fall off the edge of the earth,____ (believe) to be fiat.

4.  _____     (take)his health into consideration, he has to be sent to hospital at once.

5. Mr. Smith,  ____     ( tire ) of the ___ (bore) speech, started to read a novel.

6. The girl let out a  _____ (frighten) voice at the sight of the snake.

7. His____   (frighten) voice scared the boys away.

8. The man is hard to ____     (deal with).

9.It is no use____    (argue) with him.

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单项选择题

据可查证的资料，人类最早的学校出现在（　　）

A．公元前l000年左右

B．公元前l500年左右

C．公元前2000年左右

D．公元前2500年左右
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