题目

After he became conscious，he remembered        and        on the head with a rod. A.to attack;hit                         B.to be attacked;to be hit C.attacking;be hit                          D.having been attacked;hit   答案：  D  考查动词的具体用法。remember to do sth.记着要做某事（此事未做）；remember doing sth.记着做了某事（事已完成）。因为he与attack和hit之间是动宾关系，应用被动语态。  已知A（0，2），B（2，0），C在y=x2的图象上，S△ABC=2，则C点坐标为 ．