∵函数f(x)为偶函数,∴f(- π 3 )=f( π 3 ),∵当x∈[0,2)时f(x)=2sinx,∴f(x)=2sin π 3 =2× 3 2 = 3 ;∵当x∈[2,+∞)时f(x)=log2x,∴f(4)=log24=2,∴f(? π 3 )+f(4)= 3 +2,故选C;