高炉炉身中上部局部耐材出现破损应采取()维护比较合理高效。
A、喷涂
B、硬质压入
C、钒钛矿护炉
D、砌砖
参考答案:B
—Could you please tell me the way to the post office?
—______.It's right over there, on the left. [ ]
A. Sure
B. Yes,I could
C. Yes, please
D. Sorry
确定列表框内的某个条目是否被选定,应使用属性是【 】。