6.下列语句正确的是( )
0 295573 295581 295587 295591 295597 295599 295603 295609 295611 295617 295623 295627 295629 295633 295639 295641 295647 295651 295653 295657 295659 295663 295665 295667 295668 295669 295671 295672 295673 295675 295677 295681 295683 295687 295689 295693 295699 295701 295707 295711 295713 295717 295723 295729 295731 295737 295741 295743 295749 295753 295759 295767 366461
| A. | 弧所在的圆的半径越大,则弧越长 | |
| B. | 弧对应的圆心角越大,则弧越长 | |
| C. | 圆的半径扩大3倍,圆心角不变,则对应的扇形面积扩大3倍 | |
| D. | 圆的半径不变,圆心角扩大3倍,则对应的扇形面积扩大3倍 |