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【多选题】
下面的叙述中属于点的三面投影图的投影规律的是:A.
正面投影与水平投影的连线垂直于X轴
B.
正面投影与侧面投影的连线垂直于Z轴
C.
水平投影到X轴的距离与侧面投影到Z轴的距离相等
D.
长对正、高平齐、宽相等
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反馈参考答案：
举一反三
【简答题】请编写程序将三位十进制数(123)的百位、十位、个位分离后输出。
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A.
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B.
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C.
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D.
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【单选题】听力原文：When did Ms. Yong get promoted to vice president? (A) Because of his great work. (B) About three months ago. (C) He is tough anyway. (28)
A.
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A.
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B.
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C.
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