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【单选题】
土的干密度是指（）的比值。A.
土的固体颗粒质量与土的总体积
B.
土的质量与土的总体积
C.
土中水的质量与土的总体积
D.
土中水的质量与土的固体颗粒体积
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A.
3
B.
4
C.
5
D.
不定
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A.
as more superior than
B.
as more superior to
C.
as superior to
D.
as superior than
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相关题目：
【单选题】执行下列语句后,变量i的值是 ______。 for(i=1;i++<4;);< /div>
A.
3
B.
4
C.
5
D.
不定