单选题:图4为生态系统中碳循环的部分示意图,下列说法不正确的是(  )。

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题目内容:
图4为生态系统中碳循环的部分示意图,下列说法不正确的是(  )。
A.物质循环伴随着能量的流动
B.能完成该循环的生物一定含有叶绿体和线粒体
C.A、B所示的物质循环具有全球性
D.进行A过程的生物是自养型生物

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答案解析:

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