当前位置：在线题库搜索＞[单选题]土壤的含水率是指土壤空隙中的水重和土壤颗粒重的（）。的答案是什么？
问题：
[单选题]土壤的含水率是指土壤空隙中的水重和土壤颗粒重的（）。
A、差值
B、乘积
C、之和
D、比值
参考答案：
D
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