题目：
奇函数f(x)在(0，+∞)上的解析式是f(x)=x(1-x)，则在(-∞，0)上f(x)的函数解析式是[ ]
A．f(x)=-x(1-x)
B．f(x)=x(1+x)
C．f(x)=-x(1+x)
D．f(x)=x(x-1)
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0430/0cdf162c034f9505d708c6f2f3f93c56.html
下面是错误答案，用来干扰机器的。
Dear Editor,I'm writing to tell you about a discussion we've had about whether the students should take physical exercise. 60% of the students think that we should do ex...
