语法与词汇 68.Initial reports were that multiple waves of warplanes bombed central Baghdad, hitting oil refineries and the airport.
【正确答案】 D
【答案解析】hit“碰撞，撞击”；beat“跳动，打击”，常指有规律的打击，如雨点打击窗台，心脏跳动等；knock“敲，打”；hurt“伤害，疼痛”；strike“攻击，袭击”。故选D。