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【单选题】
预防电气线路短路的措施不包括( )。A.
在线路上应按规定安装断路器或熔断器
B.
铜、铝线相接，宜采用铜铝过渡接头，也可采用在铜线接头处搪锡
C.
安装线路时，电线之间、电线与建筑构件或树木之间要保持一定距离
D.
在距地面2m高以内的电线，应用钢管或硬质塑料管保护，以防绝缘遭受损坏
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皮皮学刷刷变学霸
举一反三
【单选题】I didn't catch the early bus and I had to the next one.
A.
wait for
B.
ask for
C.
care for
【简答题】内六角螺栓和螺栓各作用于什么场合？
【简答题】防范保险欺诈有哪些常见方法?
【单选题】I didn't catch the early bus ___ I got up late this morning. [ ]
A.
until
B.
so
C.
because
D.
and
【单选题】— I didn't catch the first train this morning. —You ____ the first train if you ____ earlier.
A.
would catch; had got up
B.
could catch;should get up
C.
would have caught; had got up
D.
would catch;got up