14.一个数分别与相邻两个奇数相乘,得到的两个乘积相差40.这个数是( )
0 159511 159519 159525 159529 159535 159537 159541 159547 159549 159555 159561 159565 159567 159571 159577 159579 159585 159589 159591 159595 159597 159601 159603 159605 159606 159607 159609 159610 159611 159613 159615 159619 159621 159625 159627 159631 159637 159639 159645 159649 159651 159655 159661 159667 159669 159675 159679 159681 159687 159691 159697 159705 199269
A. | 10 | B. | 20 | C. | 30 | D. | 40 |