题目内容

In which country was Drakkar Noir first launched?

A. Saudi
B. China
C. USA
D. France

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Where did the sales campaign for Drakkar Noir suffer its setback?

A. European market
B. Chinese market
C. Middle Eastern market

Hash函数具备可逆性。()

A. 对
B. 错

接收者可以确信MAC值未被改变确认消息的完整性。()

A. 对
B. 错

Hash函数把()信息映射到定长信息。

A. 定长
B. 变长
C. 数据
D. 模拟

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