电缆芯线的绝缘层损坏或用户引入线的接头处接触大地构成回路造成的障碍称为（）。
A、地气
B、断线
C、混线
D、绞线
参考答案：A
一般照明电路的电压为 V，只有 V的电压对人体是安全的。
In relation to the management and administration of a company limited by shares:
(b) Explain the legal constraints that limit the actions of the board of directors and the executive body. (5 marks)
