简答题
初级
2014-02-27
(21)__________
参考答案
暂无
答案解析
complex。由“the card’S value Can be verified and changed without going through a complex (复杂的)system such as a credit card has to．
That will finally help smart cards win the favor of all users and in effect become the money of the future．”可知答案为complex。
That will finally help smart cards win the favor of all users and in effect become the money of the future．”可知答案为complex。