题目内容
(请给出正确答案)
[单选题]
25型车的MONOGMM集便器低气压测试:供风压力调整到小于(340±30)kPa,进行一次冲洗,观察()后,系统应无法再次进行冲洗
A.3min15S±20S
B.4minl5s±20S
C.2min45s±20S
D.1minl5s±20S
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A.3min15S±20S
B.4minl5s±20S
C.2min45s±20S
D.1minl5s±20S
第4题
A.3min
B.4min
C.2min
D.17min
第6题
A.2min15s±20s
B.3min15s±20s
C.5min45s±20s
D.1min15s±20s
第9题
A.(3±1)英寸汞柱
B.(4±1)英寸汞柱
C.(5±1)英寸汞柱
D.(6±1)英寸汞柱
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