已知函数f(x)的反函数为g(x)=1+2lgx(x＞0)，则f(1)+g(1)=[ ]
A．0
B．1
C．2
D．4
答案：C
(2012·潍坊高二检测) Driving a car is not so difficult as you imagine, if you _______ the rules.
A．depend on
B．believe in
C．turn to
D．stick to
一般认为，网络交往的特点是（）
A.遵纪守法
B.公平互动
C.友好宽容
D.自由自律
