题目内容
用括号内所给单词的适当形式填空，毎空格限填一词。
Recently, scientists have found that dogs are ________(smart)than cats．
答案：smarter
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题目内容
用括号内所给单词的适当形式填空，毎空格限填一词。
Recently, scientists have found that dogs are ________(smart)than cats．