______ as the main reason for the recent world-wide economic problems is the fact that the US government would hardly accept.

A．Regarding

B．To regard

C．Regarded

D．Being regarded

用绝缘棒拉合隔离开关（刀闸）或经传动机构拉合断路器（开关）和隔离开关（刀闸），可不戴绝缘手套。雨天操作室外高压设备时，绝缘棒应有防雨罩，还应穿绝缘靴。接地网电阻不符合要求的，晴天也应穿绝缘靴。雷电时，一般不进行倒闸操作，禁止在就地进行倒闸操作。