正确答案: C
常用
题目:百分表是我们的()一种精密量具。
解析:C
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举一反三的答案和解析:
[单选题]十一点法相对水深0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0的测点流速分别为1.20m/s,1.40m/s,1.50m/s,1.50m/s,1.40m/s,1.30m/s,1.20m/s,1.00m/s,0.80m/s,0.60m/s,0.20m/s,则该垂线平均流速为()m/s。
1.14
[单选题]冰期相对水深0.0,0.2,0.4,0.6,0.8,1.0的测点流速分别为0.30m/s,0.42m/s,0.40m/s,0.31m/s,0.19m/s,0.06m/s,则该垂线平均流速为()m/s。
0.30
[单选题]床沙采样器到达河床面上不要扰动河床,以取到天然状态下的()样品。
床沙