14.一张长为8分米,宽为4分米的长方形的纸,最多可以剪成( )个面积为1平方厘米的小正方形.
| A. | 32 | B. | 320 | C. | 3200 |
8.工地有水泥a吨,用去10%后,还剩下( )吨.
| A. | 0.1a | B. | 0.9a | C. | 90% |
7.口袋里有大小相同的8个红球、4个白球和4个黄球,从中任意摸出1个球,摸出红球的可能性是( )
0 134611 134619 134625 134629 134635 134637 134641 134647 134649 134655 134661 134665 134667 134671 134677 134679 134685 134689 134691 134695 134697 134701 134703 134705 134706 134707 134709 134710 134711 134713 134715 134719 134721 134725 134727 134731 134737 134739 134745 134749 134751 134755 134761 134767 134769 134775 134779 134781 134787 134791 134797 134805 199269
| A. | 100% | B. | 40% | C. | 50% |