通信信息设备防雷接地方式有:()
A、交流接地
B、直流接地
C、防雷接地
D、器安全接地
E、静电接地
F、逻辑接地
参考答案:A, B, C, D, E, F
— Did you remember to give Mary the money you owed her ?
—Yes.I gave it to her _______ I saw her.
A.while
B.the moment
C.suddenly
D.once
两个三角形面积的和等于一个平行四边形的面积。[ ]