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【单选题】
钨极氩弧焊采用( )时,没有“阴极破碎”作用。A.
交流电源
B.
直流正接
C.
直流反接
D.
A或C
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反馈参考答案：
举一反三
【多选题】下列关于“体谅模式”的正确理解有（）
A.
采取中性立场，虚心接纳别人的观点
B.
教育即学会关心
C.
学龄前阶段是其所说的“社会试验期”
D.
设身处地为别人着想
E.
这种模式的理论假设是很可靠的
【简答题】完形填空。 Mrs. Black was a famous musician several years ago. She 1 music at a school and her students did well in their lessons. They liked her very much. 2 the old woman stays at home with her husband. ...
【简答题】按变形性质地图投影可以分为3类: 投影、 投影和任意投影
【简答题】完形填空。 Mrs. Black was a famous musician several years ago. She 1 music at a school and her students did well in the ir lessons. They liked her very much. 2 the old woman stays at home with her husband....
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