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A、增加 B、减少 C、保持 (次日公布前一天答案**

2020-03-03View Original

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122.刻度值为0?02mm/1000mm的水平仪,气泡移动一格,水平仪底面倾斜角度为(????)。 A、4" B、0?02° C、0?02rad D、2" 2020年3月2日第121题答案B 121.离心压缩机的喘振情况,是在进口流量(B)到一定程度时产生的,该流量通称压缩机的喘振流量。 A、增加 B、减少 C、保持 (次日公布前一天答案,公布前答对奖励10财富,公布后答对奖励5财富,参与奖励3财富) 最近有点忙,发题和回复评分有点慢,但是再忙再晚我也会发,也会回复大家,感谢大家一直支持!

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