16.$\frac{1}{2}$、$\frac{3}{6}$和 $\frac{4}{8}$这三个分数是( )
0 159601 159609 159615 159619 159625 159627 159631 159637 159639 159645 159651 159655 159657 159661 159667 159669 159675 159679 159681 159685 159687 159691 159693 159695 159696 159697 159699 159700 159701 159703 159705 159709 159711 159715 159717 159721 159727 159729 159735 159739 159741 159745 159751 159757 159759 159765 159769 159771 159777 159781 159787 159795 199269
A. | 意义相同 | B. | 分数大小相等 | C. | 分数单位相同 | D. | 都相同 |