何为岩石的碎涨性?
参考答案:岩石中各孔隙的总体积对岩石总体积的比称岩石的碎涨性。
The girl sitting next to me on the plane was very nervous, for she before.
A.hasn’t flown
B.hadn’t flown
C.didn’t fly
D.wasn’t flying
连续施行手术者若不重新刷手,则脱手套时手指皮肤不能触及()
A.对侧手皮肤
B.手套表面血迹等
C.手套腕口
D.手套内面
E.手套外面