测量土工织物2kPa压力下厚度时,放下压脚,接触后()读取数据。A.5s B.

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问题 测量土工织物2kPa压力下厚度时,放下压脚,接触后()读取数据。A.5sB.10sC.20sD.30s

选项 A.5s
B.10s
C.20s
D.30s

答案 D

解析
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