已知函数 f(x)f\left( x\right)f(x) 及其导函数 f′(x){f}^{\prime }\left( x\right)f′(x) 的定义域均为 R\mathbf{R}R ,记 g(x)=f′(x)g\left( x\right) = {f}^{\prime }\left( x\right)g(x)=f′(x) ,若 f(32−2x),g(2+x)f\left( {\frac{3}{2} - {2x}}\right) ,g\left( {2 + x}\right)f(23−2x),g(2+x) 均为偶函数,则( ) A. f(0)=0f\left( 0\right) = 0f(0)=0 B. g(−12)=0g\left( {-\frac{1}{2}}\right) = 0g(−21)=0 C. f(−1)=f(4)f\left( {-1}\right) = f\left( 4\right)f(−1)=f(4) D. g(−1)=g(2)g\left( {-1}\right) = g\left( 2\right)g(−1)=g(2)