6.
如图,在平面直角坐标系中,边长为1的正方形ABCD中,AD边的中点处有一动点P,动点P沿P→D→C→B→A→P运动一周,则P点的纵坐标y与点P走过的路程s之间的函数关系用图象表示大致是( )
0 284501 284509 284515 284519 284525 284527 284531 284537 284539 284545 284551 284555 284557 284561 284567 284569 284575 284579 284581 284585 284587 284591 284593 284595 284596 284597 284599 284600 284601 284603 284605 284609 284611 284615 284617 284621 284627 284629 284635 284639 284641 284645 284651 284657 284659 284665 284669 284671 284677 284681 284687 284695 366461
| A. | B. | C. | D. |