由于电力电缆的电容较大，施工及运行单位受设备限制，不易作（）试验。
A.绝缘电阻
B.交流耐压试验
C.直流耐压试验
D.泄漏电流试验
参考答案：B
流体式无级变速器（AT）
Questions 15～18
A. By surveying on the earth surface changes. B. By recording the frogs’ movement in the field. C. By messengers on horseback. D. By the astronomer observing the night sky.
