加工铸铁可以采用柴油作冷却液。
参考答案：错
写出生活中的一个随机事件：______；一个必然事件：______一个不可能事件______．
_____ I toured Hailin, I was deeply impressed with its beautiful parks. [ ]
A. For the first time
B. At first
C. It was the first time
D. The first time
