信息处理的关键环节是（）。
A、鉴别
B、筛选
C、整序
D、研究
参考答案：D
— I watched the film you mentioned. Isn’t it cool?
— ______. It can’t be ______.
A．Exactly; worse
B．Frankly; better
C．Definitely; worse
D．Absolutely; better
高炉四大操作制度是什么？
