极性分子间仅存在取向力,非极性分子间只存在色散力。
查看答案
等价轨道处于全充满、全空、半充满状态时原子能量较低。
A. 正确
B. 错误
It was thought a(n) ___________ to die in the battle in the ancient Greece.
A. pleasure
B. horror
C. honor
D. idea
The ancient Greeks built beautiful temples of marble for __________.
A. the rich
B. their gods
C. the poor
D. their kings
The Parthenon stood on the top of ____________.
Athens
B. Sparta
C. Acropolis
Delphi
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