土的饱和密度为1.96g/cm，它的饱和重度为（）。 A.1.96KN/m B.19_爱下问搜题

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问题单项选择题

土的饱和密度为1.96g/cm，它的饱和重度为（）。

A.1.96KN/m

B.19.5KN/m

C.19.6KN/m

D.19.9KN/m

答案

参考答案：C

选择题

Some people haven't realized something as common as _____ to the sun for a long time will do harm to their skin and even cause skin cancer.

A. exposing
B. being exposed
C. having exposed
D. exposed

填空题

区域勘探的四个步骤依次是（）。