下列叙述中正确的是( ) A . 金属在通常情况下都是固体 B . 晶体中有阳离子,但没有阴离子: C . Mg晶体中1个Mg2+跟2个价电子有较强的作用 D . 金属晶体发生形变时,其内部金属离子与自由电子相互作用不再存在 答案:B4、Don’t just believe the
advertisements.That kind of camera is ______ what it
says.
A.as good as B.not as good as C.as well
as D.not as well as