函数f(x)=x-3/x-3x+2︳的间断点是( ).

函数f(x)=x-3/x-3x+2︳的间断点是( ). A. x=1,x=2 B.x=3 C.x=1,x=2,x=3 D. 无间断点

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They are trying to __________ the waste discharged

They are trying to __________ the waste discharged by the factory for profit.选择一

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