洗炉法处理高炉结瘤,一般适用于下部结瘤。
参考答案:对
---What made the students so upset?
---______ to go to the movie.
A.Having not been allowed
B.Not having allowed
C.Because of not having allowed
D.Not having been allowed
操作票要填写设备双重名称,即设备()和()
A.名称、编号
B.名称、位置
C.编号、位置
D.电压等级、设备编号