12.已知a×b=10.99,保留一位小数是( )
0 159941 159949 159955 159959 159965 159967 159971 159977 159979 159985 159991 159995 159997 160001 160007 160009 160015 160019 160021 160025 160027 160031 160033 160035 160036 160037 160039 160040 160041 160043 160045 160049 160051 160055 160057 160061 160067 160069 160075 160079 160081 160085 160091 160097 160099 160105 160109 160111 160117 160121 160127 160135 199269
A. | 10.0 | B. | 11.0 | C. | 10.9 |