题目

如图所示为甲、乙两物体运动x﹣t图象，下列关于甲、乙两物体运动的说法，正确的是（   ）                                                                                                                                                                                                            　   A．  甲、乙两个物体不同时出发 　   B．  甲、乙两个物体在同一位置出发 　   C．  甲的速度比乙的速度小 　   D．  t2时刻两个物体速度相同                                                                                                                                     答案：AC

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