2009 National Question 2 Free-response Differentiating 2009_quanguo_old_i 2.(6分)某物体左右两侧各有一竖直放置的平面镜,两平面镜相互平行,物体距离左镜4m,右镜8m,如图所示,物体在左镜所成的像中从右向左数的第三个像与物体的距离是( ) A. 24mB. 32mC. 40mD. 48m Answer keyB ☆ SaveCan't do it, show the explanation查看原卷 →