测血压时，放开血压计气门，当听诊器里搏动声突然变低或消失时，所指刻度是（）。
A.收缩压
B.舒张压
C.平均动脉压
D.以上均不对
参考答案：B
用所给单词的适当形填空。
l. We know many ________ ( hero) in the movie.
2. I was _________ at the ________ news very much ( surprise).
3. I happened___________(see) my teacher on the way to school.
4. After two hours' discussion, they made a hard__________(decide).
5. Tom is so___________ (luck) that he wins the contest again.
印度属于:
A．南亚地区
B．中亚地区
C．东南亚地区
D．东亚地区
