Question

设a＝0.6^4.2，b＝7^0.6，c＝log_0.67，则a，b，c的大小关系是(　　)

A．c<b<a                                                      B．c<a<b

C．a<c<b                                                      D．a<b<c

Answer 1

B

[解析]　依题意，0<0.6^4.2<0.6⁰＝1,7^0.6>7⁰＝1，log_0.67<log_0.61＝0，因此c<a<b，选B.