East of the mountain ______ two towns, ________ my hometown.

A．lie; one of which is

B．lies; where lies

C．lies; one of which is

D．lie; that is

线路检修人员的“三熟”是指（）。

A.熟悉设备.系统和基本原理

B.熟悉检修工艺质量和运行知识

C.熟悉本岗位的规程制度

D.熟悉操作和事故处理