A：explains to
B：cares for
C：approves of
D：accounts for
在平面直角坐标系上，点（4，6）先向左平移6个单位，再将得到的点的坐标关于x轴对称，得到的点位于（ ）
—Yes. Though it's a little expensive, it really has good quality.
翻译。
