铁合金矿热炉的短网运行温度一般要求在90℃以下。
参考答案:错
解析:铁合金矿热炉的短网运行温度一般要求在70℃以下。
()we would like to assist you,we do not think there is room for a reduction in our price.
A.Even
B.As
C.Much
D.Much as
对于一些产生时间早、数量少的文件应从长保存,不得销毁。