题干

甲、乙两车在平直公路上同向行驶,其v﹣t图象如图所示.已知两车在t=3s时相遇,则(   )

A:在t=1s时,甲车在乙车后

B:两车第一次相遇的时刻是t=2s

C:在t=0时,甲车在乙车前3.75m

D:甲、乙两车两次相遇位置沿公路方向的距离为20m

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C,D

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