Sanitary waste matter will .(1)pass through a scre
Sanitary waste matter will .(1)pass through a screen or cutters (2)come into contact with the bacteria in a tank (3)be discharged, normally without bacteria
A.(1)
B.(1)(2)
C.(2)(3)
D.(1)(2)(3)
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:D
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