题目

在同一点O抛出的三个物体，它们做平抛运动的轨迹如图所示.则三者做平抛运动的初速度vA、vB、vC的关系和三者做平抛运动的时间tA、tB、tC的关系分别是（    ）A．vA>vB>vC，tA>tB>tC                 B．vA=vB=vC，tA=tB=tCC．vA<vB<vC，tA>tB>tC                 D．vA>vB>vC，tA<tB<tC  ________ for the fact that she got hit by a car and broke her leg on her way to school, she might have passed the exam． [　　] A．Had it not been B．Hadn’t it been C．Was it not D．Were it not