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问题 单项选择题

超声对肝囊肿与Caroli病鉴别诊断的主要依据在于

A．两者形态的差异
B．两者大小的不同
C．两者病灶的数目
D．囊柱状囊腔是否相互连通
E．后方声增强效应的程度

答案

参考答案：D

填空题

用括号中所给单词的适当形式完成下列句子。

1. All the students in Shanghai should help fight               to protect the environment. (pollute)

2. Now the good method is               used in the experiments. (wide)

3. The old man was               to the policeman who found the lost car for him. (thank)

4. For the                time he became worried about the future because of the global financial crisis

   (金融危机). (one)

5. Mother bought a nice dress the day before yesterday, and now she is dressing              . (she)

6. Qingming Festival is an important Chinese festival to remember people's                relatives. (die)

7. Professor Brown can still tell quite a few funny               , although he is already in his eighties. (story)

8. Bolt              in winning the gold medal in the 2008 Beijing Olympic Games.(success)

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单项选择题

( )决定着生产关系。

A．生产资料所有制形式

B．生产力的发展水平

C．经济增长率

D．经济发展水平
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