题目内容
非极性分子中的化学键，不一定是非极性的共价键。
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只有极性分子之间存在取向力，所以取向力总是大于色散力和诱导力。
The newly emerged ________ between the two neighboring countries finally led to a war.
The spy succeeded in intercepting the ________ between the two allied presidents.
The basketball match between the two neighboring colleges has been postponed until Monday in the ________ that the weather will improve.
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