某路基已知路床顶以下80cm内的平均相对含水量W Z=0.65,查表可得W 0=0.45、W 1=0.5、W 2=0.6、W 3=0.7,则该路基属于( )状态。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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