单相全波整流式X线机的热量计算公式为（）

A.HU=0.707×kVp×mA×s

B.HU=1.30×kVp×mA×s

C.HU=1.414×kVp×mA×s

D.HU=1.732×kVp×mA×s

E.HU=kVp×mA×s

用所给词的适当形式填空。

1. I said I _________ (buy) my pop from someone else.

2. Li Ming said he _________ (visit) Shijiazhuang next week.

3. I was a little _________ (confuse) while Li Ming paid two yuan for two pops.

4. Please stop _________ (laugh) loudly, the others were sleeping . 

5. It is interesting for him _________ (read) about a foreign country.