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【单选题】
(实验预习单选题) 圆形直作滞流流动,流速不变,若管子直径增大一倍,则阻力损失为原来的多少呢? (备注:有同学在课后咨询这个课内实验时的练习题,请大家再练习一下,顺便再提后给出了详细的答案解析)A.
1/2
B.
1/4
C.
2 倍
D.
4 倍
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