按GB7588—2003《电梯制造与安装安全规范》附录M进行曳引力计算时,需要计算当量摩擦系数f。f与摩擦系数μ成正比关系,μ恒等于0.1。()
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The gardener is taking care of the place, no one _____ there at present.
A:living
B:lives
C:lived
D:to live
Quite often I've gone to a man who didn't tell me _____ Adam.
A:from
B:with
C:to
D:of
The next thing _____ happened was that something hit me terribly hard on the back of the head.
A:that
B:what
C:which
D:there
按GB7588—2003《电梯制造与安装安全规范》规定,轿厢上行超速保护装置应能在没有那些在电梯正常运行时控制速度、减速或停车的部件参与下,达到标准规定的保护功能,除非这些部件存在内部的冗余度。该装置在动作时,可以由与轿厢连接的机械装置协助完成,无论此机械装置是否有其他用途。()