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问题 单项选择题

关于参与性观察的特点，描述最恰当的是（）。

A.结果可以重复

B.结果可以外推

C.能够翔实准确地获得第一手资料

D.需要的时间短

E.结果不受主观因素影响

答案

参考答案：C

填空题

根据句意写出括号内所给单词的适当形式。

1. She looks much _________ (health) than she used to be because she takes exercise every day.

2. Our English teacher has offered us some useful _________ (suggest). 

    I think they will help us a lot in our English study.

3. Please tell me the       __         (lady) telephone numbers, I want to interview them.  

4. You can see the _________ ( happy) on her face because she can't find her lovely dog.
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单项选择题

腰椎CT扫描时，给病人腿部垫起的目的是

A．让病人躺着更舒服
B．减轻病人由于椎间盘突出引起的疼痛
C．使腰椎的生理弧度减少
D．使扫描机架可以减少倾斜角度
E．避免病人的脚弄脏检查床
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