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】解析：译文为：最初的报道说，几波战机轰炸了巴格达的市中心，袭击了石油精炼厂和机场。hit碰撞，撞击。beat跳动，打击；knock敲，打；hurt伤害；strike攻击，袭击。