判断题
错误(↓↓↓ 点击‘点击查看答案’看答案解析 ↓↓↓)
A.0.01~0.02m/sB.0.2~0.5m/sC.0.6~0.8m/sD.0.9~1.2m/s
A.90mpaB.67.5mpaC.13.33mpaD.80mpa
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