Question

若a＝log0.7^0.8，b＝log0.1^0.9，c＝1.1^0.9，那么

1. A.
   b＜a＜c
2. B.
   a＜c＜b
3. C.
   a＜b＜c
4. D.
   c＜a＜b

Answer 1

A
解：c＞1，a＜1，b＜1，a＝log0.7^0.8＞log0.7^0.9＞log0.1^0.9＝b，∴选A．