题目内容
Bears live in cold countries, ______ they sometimes live in hot countries, too.
A. and B. with C. or D. but
D
【解析】
试题分析：句意：熊生活在寒冷的国家，但他们有时也生活在炎热的国家。本题考查并列句，要用并列连词，B选项不符合题意，and表示并列递进，or表示选择，but表示转折。由句意可知选D。
考点: 考查连词的用法。
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