单选题:下列关于炉外精炼的技术功能,说法错误的是( )。 题目分类:66题库 题目类型:单选题 查看权限:VIP 题目内容: 下列关于炉外精炼的技术功能,说法错误的是( )。 A.降低钢中硫.氧.氢.氮和非金属杂物含量 B.深度脱碳 C.微调合金成分 D.增加钢水的温度梯度 参考答案: 答案解析:
If Peter had told his teacher about hisdifficulty in math ho If Peter had told his teacher about hisdifficulty in math homework, she_________ 分类:66题库 题型:单选题 查看答案
第4题答案是 第4题答案是A.rescue A.rescue B.league B.league C.pursue C.pursue D.argue D.argue 分类:66题库 题型:单选题 查看答案