李静或者懂英语,或者懂日语;已知李静懂日语;所以,李静不懂英语。
答:相容选言推理,(1分)不正确,(1分)因为相容选言推理无肯定否定式,这是一个无效式。(4分)
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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