生态系统的碳循环与各生物的哪些活动有关(   ) ①光合作用②呼

生态系统的碳循环与各生物的哪些活动有关(  

光合作用呼吸作用蒸腾作用吸收作用微生物的分解作用

A①②③                 B①②⑤                  C②③④                 D①③⑤

答案

B

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