电梯维修保养中,严禁身体横跨于轿顶和层门间工作。()
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Before any work on electrical or electronic equipment is performed, which of the following
A. De-energize the applicable switchboard bus
Bypass the interlocks
C. Secure and tag the supply circuit breaker in the open position
D. Station a man at the circuit supply switch
电影《》中的片段“敖德萨阶梯”就是通过蒙太奇剪辑创造时空的典型案例。
非平衡构图能够还原人眼正常的视觉习惯,是常规的影视构图,因此能给观看者带来相对轻松舒适的观影体验。()
参考答案:错误