国际上普遍采用的气体分析标准状态是指（）

A.20℃/101.31kPa

B.20℃/202.62kPa

C.15℃/101.31kPa

D.0℃/202.62kPa

E.0℃/101，31kPa

根据句意、首字母提示完成单词。

1．I h_________ ever eat junk food, because it's unhealthy food.

2．Maria e__________ every day, so she is in good health.

3．It's _______(hot) in summer in Beijing than that in Dalian.

4．Mary is t_________. Please bring her some water.

5．I can't go to the movies this Saturday. I have to have my piano l________.