题目

动物和细菌、真菌一样能促进生态系统的物质循环,故动物是( ) A.生产者   B.消费者 C.分解者   D.既是消费者,又是分解者 答案:BSome children don't like dogs because they____.     [     ]A. look beautiful .            B. are friendly    C. look scary                D. are boring and trendy
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