15.半径不同的两个圆,它们的( )相同.
| A. | 圆周率 | B. | 周长 | C. | 面积 |
14.下面的式子中,( )不能读作“十二比三十五”.
0 132812 132820 132826 132830 132836 132838 132842 132848 132850 132856 132862 132866 132868 132872 132878 132880 132886 132890 132892 132896 132898 132902 132904 132906 132907 132908 132910 132911 132912 132914 132916 132920 132922 132926 132928 132932 132938 132940 132946 132950 132952 132956 132962 132968 132970 132976 132980 132982 132988 132992 132998 133006 199269
| A. | 12:35 | B. | $\frac{12}{35}$ | C. | 12÷35 |