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【判断题】
相容选言命题的有效推理形式是肯定否定式和析取附加式。A.
正确
B.
错误
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【简答题】前列腺增生症最重要的症状是（ ）
【简答题】前列腺增生症最重要的症状是（ ）
【单选题】听力原文：A: How is Canada's climate? Is it intolerably cold in winter? B: People tend to think that as Canada is a northern country, its winters must be harsh and long. But contrary to the popular belief,...
A.
Harsh and long.
B.
Gloomy.
C.
Long but sunny.
D.
Terrible.
【单选题】I think ______ a joke to stay on the bench in the park for a cold winter night. [ ]
A.
that
B.
it
C.
this
D.
which
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