【单选题】低压配电系统的接地形式中,TN系统和TT系统的共同点是( )。
D.
受电侧设备外露可导电部分经接地的电源中性点接地
【判断题】晚清时期,西方列强总体而言对中国实施变法持肯定和赞许的态度。()
【判断题】共振就是一种当结构体系自振频率与简谐地面运动频率相近时结构发生强烈振动反应的现象。()
【简答题】translate the following sentence to Chinese: Any differentiable function must be continuous at every point in its domain. The converse does not hold: a continuous function need not be differentiable.
【单选题】低压配电系统的接地形式中,TN系统和TT系统的共同点是( )
C.
受电侧设备外露可导电部分经接地的电源中性点接地
【多选题】In terms of answering the question, what was the difference between the American professor and the Chinese participants?
A.
The professor would like to give a direct answer from a specific perspective.
B.
The professor does not like to mention personal experiences.
C.
The Chinese participants would like to mention the point at the end.
D.
The Chinese participants tend to offer as much information as possible from a holistic perspective.
【简答题】Translation from English into Chinese: The second step lasts until the temperature falls below the point at which the active metabolism off tops; consequently, the excretion of both lactic acid and th...
【单选题】低压配电系统的接地形式中,TN系统和TT系统的共同点是
D.
受电侧设备外露可导电部分经接地的电源中性点接地
【简答题】The Fate of P& G's New Shampoo Product “Ascend” in China At the end of the 1990s, the shampoo market was booming in China. With the flourishing Chinese brands, P&G was confronted with a tough time in ...