患者戴用全口义齿1周后，自述义齿易松动在询问病史时，要着重问

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问题单项选择题

患者戴用全口义齿1周后，自述义齿易松动

在询问病史时，要着重问的是

A．怎样松动

B．松动程度如何

C．何时义齿松动

D．过去是否戴过义齿

E．是否能吃饭

答案

参考答案：C

填空题

用所给动词的适当形式填空。

1. The moon _____ get) its light from the sun.

2. —Where is your monitor?"

—He_____ (make) a model plane in the classroom."

3. What new subjects _____ you _____ (study) next term?

4. The students of Class Four _____ (listen) to a report on science this time yesterday.

5. The rain _____ (not stop) yet. You'd better not go out.

6. Before my father got home, I _____ (finish) my homework.

问答题简答题

机车运用中，哪些主要部件必须作用良好并符合要求？