17.若一组数据0,2,-1,4,x的中位数为0,则在下列数值中x的可能值是( )
| A. | -3 | B. | 6 | C. | -2 | D. | -2或-3 |
14.
如图,△ABC的顶点是正方形网格的格点,则sinA的值为( )
0 283463 283471 283477 283481 283487 283489 283493 283499 283501 283507 283513 283517 283519 283523 283529 283531 283537 283541 283543 283547 283549 283553 283555 283557 283558 283559 283561 283562 283563 283565 283567 283571 283573 283577 283579 283583 283589 283591 283597 283601 283603 283607 283613 283619 283621 283627 283631 283633 283639 283643 283649 283657 366461
| A. | $\frac{1}{3}$ | B. | $\frac{\sqrt{10}}{10}$ | C. | $\frac{\sqrt{5}}{5}$ | D. | $\frac{3\sqrt{10}}{10}$ |