单项选择题

As we all know, telephone wires are______ by a covering of rubber of paper.

A．wedged
B．strapped
C．insulated
D．stiffened
<上一题 目录 下一题>
热门 试题

单项选择题
The children cheered up when they saw hundreds of colorful balloons______ slowly into the sky.
A．floating
B．hoisting
C．heaving
D．ascending
单项选择题
Although she was once a famous actress and well-known to almost everyone, she is now in______ .
A．ellipse
B．eclipse
C．equator
D．episode
相关试题