a>b>0,下列不等式一定成立的是:
A.a+1/a>b+1/bB.c/a<c/bC.2a+b/a+2b>a/bD.a+b/2>√ab>2ab/a+b...
A.a+1/a>b+1/b
B.c/a<c/b
C.2a+b/a+2b>a/b
D.a+b/2>√ab>2ab/a+b 展开
B.c/a<c/b
C.2a+b/a+2b>a/b
D.a+b/2>√ab>2ab/a+b 展开
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