雷雨天气，需巡视室外高压设备时，应穿（），并不得靠近避雷器和避雷针。
A、棉工鞋
B、单皮鞋
C、雨靴
D、绝缘靴
参考答案：D
I always wanted to do the job which I'd been trained ______.
A. on B. for C. by D. of
