11.如果点P在x轴正半轴上,则点P的坐标为( )
0 284834 284842 284848 284852 284858 284860 284864 284870 284872 284878 284884 284888 284890 284894 284900 284902 284908 284912 284914 284918 284920 284924 284926 284928 284929 284930 284932 284933 284934 284936 284938 284942 284944 284948 284950 284954 284960 284962 284968 284972 284974 284978 284984 284990 284992 284998 285002 285004 285010 285014 285020 285028 366461
| A. | (0,2) | B. | (-2,0) | C. | (4,0) | D. | (0,-1) |