冰期相對(duì)水深0.0,0.2,0.4,0.6,0.8,1.0的測點(diǎn)流速分別為0.30m/s,0.42m/s,0.40m/s,0.31m/s,0.1
2021-05-08
冰期相對(duì)水深0.0,0.2,0.4,0.6,0.8,1.0的測點(diǎn)流速分別為0.30m/s,0.42m/s,0.40m/s,0.31m/s,0.19m/s,0.06m/s,則該垂線平均流速為()m/s。
A、0.31
B、0.30
C、0.29
D、0.28
正確答案:本題B
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