参与止血作用的血管主要是
A.小动脉B.小静脉C.毛细血管D.微循环血管E.小动脉、小静脉、毛细血管、微循环血管
参考答案:E
—You missed the bus, didn't you?
—Yes, I did. When I ____ the station, it had already left.[ ]
A. reached
B. got
C. arrived
D. rode
氯化钾也可以做破胶剂来用。()