相对水深0.6的测点流速为2.03 m/s,五点法计算的垂线平均流速为1.98,以五点法为准,则该次测验所计算的相对水深0.6的流速系数为( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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