--- Would you mind if I closed the door ?

--- ___________．The wind is blowing strongly．

A．Certainly

B．No

C．Yes , you can’t

D．I’m sorry but you’d better not

隔离开关引线的长度应保证当接触悬挂受温度变化偏移时有一定的活动余量并不得侵入限界，引线摆动到极限位置对接地体的距离符合规定。