My mother is talking _____ my teacher. [ ]
A. and
B. with
C. in
D. at
答案：B
The book will give you an idea _______ life was like in ancient Greece.
A．how
B．where
C．that
D．what
架空线路单元状态评价以线路单元为单位，包括架空线路的杆塔（基础）、（）、通道、接地装置及附件等部件。
A.导线
B.绝缘子
C.铁件金具
D.拉线
