16.一个两位数,十位上的数字是x,个位上的数字是y,把这个两位数十位上数字与个位上数字调换位置后的两位数用代数式表示为( )
0 294543 294551 294557 294561 294567 294569 294573 294579 294581 294587 294593 294597 294599 294603 294609 294611 294617 294621 294623 294627 294629 294633 294635 294637 294638 294639 294641 294642 294643 294645 294647 294651 294653 294657 294659 294663 294669 294671 294677 294681 294683 294687 294693 294699 294701 294707 294711 294713 294719 294723 294729 294737 366461
| A. | yx | B. | xy | C. | 10y+x | D. | 10x+y |