传染病潜伏期的意义有()
A.判断预后
B.确定检疫期
C.协助治疗
D.协助诊断
E.确定病程长短
参考答案:B, D
用括号内单词的适当形式填空。
1. I'm (come).
2. My little brother (watch) TV every day.
3. Thanks for (teach) us English.
4. We (play) football yesterday.
5. There are many (bus) in the street.
6. What (do) the girl do last night?
7. Miss White is (a) English teacher.
8. What did she (have) for Lunch?
发电车检修人员在作业时,必须做到哪“三个禁止”?