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Regarding the provisions on the trial operation of the sewage treatment plant, the error is that () A. The personnel participating in the trial operation must pass the training examination B. The stand-alone test run is carried out before the equipment unit is tested C. The whole long union

author：Two build fighting

Regarding the regulations on the commissioning of sewage treatment plants, the error is ()

　　A. Participants in the trial operation shall pass the training examination

　　B. After the stand-alone test drive, the equipment unit will be tested

　　C. The full-length online running time is 12h

　　D. Before the trial operation, all individual projects are accepted

concerning training Time elapse examination pedestrian equipment mistake
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