题目内容

艺术的基本特征是什么?

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Sadam()for 25 years.

A. got married
B. was married
C. married
D. were married

缓慢一词描述了导致具有先后序的任务推迟的逻辑关系。()

A. 正确
B. 错误

如何认识法规汇编?

激光加工中心飞行打标机所用CO2激光器是射频激励激光器。

A. 正确
B. 错误

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