玻璃钢管道试压时，水从（）注入，空气从（）排出，一定要排除管道内所有的空气。
参考答案：低处；高处
Again and again the doctor_______ the crying baby girl, but he couldn’t find out what was wrong with her.
A．looked over
B．looked after
C．looked for
D．looked out
治疗虚证晕厥应选取的配穴是（）
A.水沟、内关
B.气海、关元
C.合谷、太冲
D.内关、足三里
E.百会、水沟
