当前位置：在线题库搜索＞[单选题]某质点沿半径为R的圆周运动一周，它的位移和路程分别为多少（）。的答案是什么？
问题：
[单选题]某质点沿半径为R的圆周运动一周，它的位移和路程分别为多少（）。
A、2πR，0
B、0，2πR
C、2πR，2πR
D、0，0
参考答案：
B
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