() 9. We humans,animals and plants are all things. Air and water keep us. A. living;alive B. alive;living C. living;living D. alive? alive 题目和参考答案——青夏教育精英家教网—

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() 9. We humans,animals and plants are all things. Air and water keep us.

A. living;alive B. alive;living C. living;living D. alive? alive

9.A

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