下列推理正确的是 A.把a(b+c)与loga(x+y)类比,则有loga(x+y)=logax+logay B.把a(b+c)与sin(x+y)类比,则下列推理正确的是A.把a(b+c)与loga(x+y)类比,则有loga(x+y)=logax+logayB.把a(b+c)与sin(x+y)类比,则有sin(x+y)=sinx+s
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