Read the quoted parts carefully and answer the questions in English. "Is dying hard, Daddy?"
"No, I think it’s pretty easy, Nick. It all depends."
What was Nick preoccupied with when he asked the question?
【正确答案】：
LIFE AND DEATH 
【题目解析】：选文中Nick问父亲“Is dying hard”，由此可以看出他是在问生存和死亡有关的问题。