等势面越密的区域，场强（）。
A.越小
B.越大
C.越弯曲
D.越窄
参考答案：B
直埋电缆的方位标志应设置在哪些位置？
is surprising to us is that Tom can speak English fluently as though he were a native speaker.
A．What
B．That
C．Which
D．As
