用电设备的接地及安全设计,应根据()等因素合理确定方案。
A.工程的发展规划
B.工程的地质特点
C.工程的规模
D.工程的电气设备
参考答案:A, B, C
肺源性心脏病,心影有时可呈()
A.梨形心
B.横位心
C.悬垂型心
D.靴形心
E.主动脉型心
.
It’s reported that in some families there have been more than one person____the Nobel Prize.
A.received
B.receives
C.receive
D.receiving