题目内容：
[选择题,2分]You no longer need to make mental conversions of the country `s money.
A. You needn`t change the country’s money to your country’s money in mind because you have ad
B. You needn`t change the country’s money to yours in mind because you no longer return it.
C. You needn`t change the country’s money to yours in mind because you can calculate it witho
D. You needn`t change the country’s money to yours in mind because you have tried to do that
参考答案：