岩石同时具有弹性变形和塑变形，这种变形称作岩石的弹、塑性变形。
参考答案：对
---- What were you doing when Tony phoned you?
---- I had just finished my work and _____to take a shower.
A．had started
B．started
C．have started
D．was starting
开挖深度大于等于（）的基坑应实施基坑工程监测。
A.5m
B.6m
C.7m
D.8m
