光缆接头盒沉入1.5m深的水中浸泡24h后,光缆接头盒两端金属构件之间、金属构件与地之间绝缘电阻应大于20000兆欧。

A、对

B、错

相关专题: 金属构件  

查看答案

相关问题推荐

  • 在雷害或强电危害严重地段光缆中心加强芯应采用()。

    A、金属构件

    B、非金属构件

    C、半金属构件

    D、带绝缘层的金属构件

    查看答案
  • 在下列金属构件中,不属于工艺金属结构件的是( )。

    • A管廊

    • B设备框架

    • C漏斗、料仓

    • D吊车轨道

    查看答案
  • It is because she is too young ______ she does not know how to deal with the situation.

    A. so

    B. that

    C. so that

    D. therefore
    查看答案
  • The moon gives ______ no light of its own.

    A. off 发出,发光

    B. up 放弃

    C. in 屈服

    D. away
    查看答案
  • The announcement says that the class meeting will be ______ at 7 o'clock Tuesday evening.

    A. taken

    B. made

    C. placed

    D. held
    查看答案
  • I hate those people who think they are superiorme without any reason.
    A. at B. on C. to D. than
    查看答案
  • Food and shelter are _____ for human beings.
    A. special B. especial C. essential D. exceptional
    查看答案