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【单选题】
在内容数据中嵌入不可见的信息。当内容发生改变时,这些水印信息会发生相应的改变,从而可以鉴定原始数据是否被篡改。应该使用()。A.
鲁棒的数字水印
B.
易碎水印
C.
隐写术
D.
潜信道
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反馈参考答案：
举一反三
【简答题】A．He was a man full of responsibility for German citizens. B．He was a man with little courage to face the threat of war. C．He was an eccentric man who loves hot weather. D．He was a man of many talents...
【单选题】—Is the person a man or a woman? — . [ ]
A.
He is a man.
B.
He is a woman.
C.
Yes, he is.
D.
No, he isn't.
【单选题】, he often shows sympathy the poor.
A.
A wealthy man as he is：to
B.
Wealthy man as he is；for
C.
A wealthy man although he is；to
D.
Wealthy man although he is；for
【单选题】. _______, he often feels sympathy____the poor. A. A wealthy man as he is, to
B.
Wealthy man as he is, for
C.
A wealthy man although he is, to
D.
Wealthy man although he is, for
【简答题】What a clever man he is! ______ ______ ______man he is!
【多选题】下列关于国库单一账户体系中各账户的表述，正确的有（ ）。
A.
国库单一账户在财政总预算会计中使用，行政单位和事业单位会计中应设立该账户
B.
零余额账户每日营业中单笔支付额在5000万元人民币以上（含5000万元人民币）的，应当及时与国库单一账户清算
C.
预算外资金专户在财政部门设立和使用
D.
特设专户用于记录、核算和反映预算外资金的收入支出活动，并用于预算外资金日常收支清算
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