按电场的均匀程度可将静电场分为()三类。
A.均匀电场;
B.稍不均匀电场;
C.不均匀电场;
D.极不均匀电场。
参考答案:A, B, D
(2012·常州高二检测) _______ the rapid growth of short messages sent by mobile phones, the increasing number of criminal cases appeared through short messages.
A.For
B.By
C.As
D.With
ZP700转盘中的通孔直径是27.5in