烧化氧化铁皮产生什么后果？
参考答案：（1）会使钢的氧化急剧增加
（2）损害钢的质量
（3）影响炉体维护
（4）易发生粘钢事故
Mike found his missing car in the street outside his house, ____ newly cleaned and polished. [ ]
A. looked
B. to look
C. looking
D. to be looking
写出RS3-500／100的名称和规格意义？
