单项选择题

中国单子口岸通过数据中心和数据交换平台实现联网核查，从根本上解决业务单证的弄虚作假问题，创造了公平竞争的市场环境。

A．对
B．错

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In an application letter, “I am writing to you about the possibility of pursuing a doctor’s degree in Finance in your prestigious University.” is an example of ___________.
A、introducing oneself
B、introducing the purpose of writing
C、anticipating a reply
D、sending invitation

单项选择题

The Chinese rules on costumes starts from

A．Zhohu dynasty
B．Tang dynasty
C．Qin dynasty
D．Ming dynasty