2.小圆的直径等于大圆的半径,小圆的面积与大圆面积的比是( )
0 294891 294899 294905 294909 294915 294917 294921 294927 294929 294935 294941 294945 294947 294951 294957 294959 294965 294969 294971 294975 294977 294981 294983 294985 294986 294987 294989 294990 294991 294993 294995 294999 295001 295005 295007 295011 295017 295019 295025 295029 295031 295035 295041 295047 295049 295055 295059 295061 295067 295071 295077 295085 366461
| A. | 1:2 | B. | 1:4 | C. | 1:8 | D. | 1:16 |