有关国产烤瓷Ni - Cr合金的描述中正确的是A.属低融合金,熔点为870°CB.属中融合金,熔点为1060°CC.属中融合金,熔点为1320...

作者: rantiku 人气: - 评论: 0
问题 有关国产烤瓷Ni - Cr合金的描述中正确的是 A.属低融合金,熔点为870°C B.属中融合金,熔点为1060°C C.属中融合金,熔点为1320°C D.属高融合金,熔点为1060°C E.属高融合金,熔点为1320°C
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答案 E
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  • 位置: 第 85 行
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