How will the boy go to the zoo?
A:
B:
C:
已知函数f(x)=lnx的图象与g(x)=ax+bx的图象交于点P(1,0),且在P点处有公共切线.
(Ⅰ)求a,b的值;
(Ⅱ)对任意x>0,试比较f(x)与g(x)的大小.