题干
______ himself with necessary knowledge and skills, the young man went to the job market with much confidence.
A：Equipped
B：Equipping
C：Having equipped
D：Being equipped
答案(点此获取答案解析）
C
其中m>0，若方程3f(x)=x恰有5个实数解，则m的取值范围为 （ ）