15.0.0003用科学记数法表示为( )
0 279496 279504 279510 279514 279520 279522 279526 279532 279534 279540 279546 279550 279552 279556 279562 279564 279570 279574 279576 279580 279582 279586 279588 279590 279591 279592 279594 279595 279596 279598 279600 279604 279606 279610 279612 279616 279622 279624 279630 279634 279636 279640 279646 279652 279654 279660 279664 279666 279672 279676 279682 279690 366461
| A. | 3×104 | B. | 3×103 | C. | 3×10-3 | D. | 3×10-4 |