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【判断题】
Cohen-Sutherland线段裁剪算法提高效率的主要思想是通过编码的方式快速判断线段完全落在窗口内和窗口外两种情形，并减少线段部分在窗口内、部分在窗口外情形下的求交次数和求交所需的计算量。A.
正确
B.
错误
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【单选题】下列治疗措施哪项不正确
A.
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B.
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C.
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D.
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E.
切开引流——前庭大腺脓肿
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