题目

More than four decades ago British scientist Robert Edwards first witnessed the miracle of human life growing inside a test tube at his Cambridge lab. Since that ground-breaking moment, more than four million babies have been born through IVF and in 2010 his great contribution to science was finally recognized as he was awarded the Nobel Prize for medicine． The prize for Dr Edwards, who was given a Daily Mirror Pride of Britain Award in 2008, includes￡900,000 cheque. The Nobel Assembly described IVF as a milestone in modern medicine． With the help of fellow scientist Patrick S已知函数f(x)=lg|x|,x∈R且x≠0,则f(x)是(　　)A．奇函数且在(0,+∞)上单调递增 B．偶函数且在(0,+∞)上单调递增 C．奇函数且在(0,+∞)上单调递减 D．偶函数且在(0,+∞)上单调递减