9.
如图,A在DE上,F在AB上,且AC=CE,∠1=∠2=∠3,则DE的长等于( )
| A. | DC | B. | BC | C. | AB | D. | AE+AC |
8.小明在月历纵列上圈出了三个数,算出它们的和,其中正确的结果可能是( )
| A. | 23 | B. | 24 | C. | 25 | D. | 26 |
3.判断式子①$\frac{2x}{3+x}$和②$\frac{2}{3x}$是否分式,下面的说法正确的是( )
0 295636 295644 295650 295654 295660 295662 295666 295672 295674 295680 295686 295690 295692 295696 295702 295704 295710 295714 295716 295720 295722 295726 295728 295730 295731 295732 295734 295735 295736 295738 295740 295744 295746 295750 295752 295756 295762 295764 295770 295774 295776 295780 295786 295792 295794 295800 295804 295806 295812 295816 295822 295830 366461
| A. | ①②都是 | B. | ①②都不是 | C. | ①是②不是 | D. | ①不是②是 |