【0206440】
A: 10.9×9%+3.09×9%
B: 10.9×9%+3.09×3%
C: 10.9÷(1+9%)×9%+3.09÷(1+9%)×9%
D: 10.9÷(1+9%)×9%+3.09÷(1+3%)×3%