这题的答案是D？我认为不对。根据(2)的条件r应该可以<8吧，例如7.96啥的。
到底是选A还是D呢？
Q10: If $1,000 will be deposited in a bank account and I is the dollar amount of interest earned from the original deposit, represented as I = 1000 {(1 + r/100)n – 1}, and the annual interest rate is r percent, is r > 8 percent? (1) The deposit earns a total of $210 in interest in the first 2 years. (2) (1 + r/100)2 > 1.15 | 
