题目内容：
下列有关生物量的说法正确的是( )
A.陆地生态系统中最大的是热带雨林
B.冻土带的生物量最低
C.在水生生态系统中，水的最表层的生物量最大
D.森林生态系统中，树冠的最顶部生物量最大
参考答案：【答案仅供学习，请勿对照自行用药等】
选择题：下列有关生物量的说法正确的是( )
- 题目分类：习题答案
- 题目类型：选择题
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