12.下列几对数中,互为相反数的是( )
0 309633 309641 309647 309651 309657 309659 309663 309669 309671 309677 309683 309687 309689 309693 309699 309701 309707 309711 309713 309717 309719 309723 309725 309727 309728 309729 309731 309732 309733 309735 309737 309741 309743 309747 309749 309753 309759 309761 309767 309771 309773 309777 309783 309789 309791 309797 309801 309803 309809 309813 309819 309827 366461
| A. | $\frac{3}{4}$和-0.75 | B. | -|-5|和-5 | C. | π和-3.14 | D. | $\frac{1}{3}$和-3 |