摘要:10.设a=log0.70.8.b=log1.10.9.c=1.10.9.那么( ) A.a<b<c B.a<c<b C.b<a<c D.c<a<b [解析] a=log0.70.8>0.且a=log0.70.8<log0.70.7=1. b=log1.10.9<log1.11=0. c=1.10.9>1. ∴c>1>a>0>b.即b<a<c.故选C. [答案] C
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