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【多选题】
下列关于照像制凹版的说法中,正确的是 。A.
照像凹版又称影印版制版
B.
照像凹版制版工艺中使用了碳素纸
C.
照像凹版属于网穴深度变化，但开口面积不变的印版
D.
照像凹版制版工艺包括敏化、曝光、过版、腐蚀等多道工序
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A.
Most American students cheat in exams before they enter universities.
B.
Most American students entering the universities admit they have cheated.
C.
Half of students entering the universities admit to cheating on their homework.
D.
There is academic dishonesty among students entering the US University.
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