海关税费电子支付系统(UPC)有关电子支付业务是指()通过支付平台完成海关税费及保证金缴纳的业务。
A.海关
B.企业
C.银行
参考答案:A, B, C
Questions 24-30
We can infer from this passage that a change-over of roles in the family ______.
A. is quite necessary in modern lifeB. is probably based on some practical reasonsC. aims solely at a complete emancipation of women
概述大同社会和小康社会的社会特征。