一般事故是指一次事故造成旅游者（），或经济损失在1万至10万（含1万）元的事故。
A.轻伤
B.轻伤多名
C.重伤
D.重伤致残
参考答案：C
—Whose T-shirt is this?
—It _______ be John's. It's _______ small for him. [ ]
A. can't; much too
B. can't; too much
C. mustn't; much too
D. mustn't; too much
影响馏份塔操作的主要因素有哪些？
