垄断利润的形成,关键在于()。
A、垄断组织在经济生活中起了决定作用
B、国家对经济的干预加强了
C、利润平均化的趋势消失了
D、表明内部的竞争受到阻碍
参考答案:A
— Tom is never late for work. Why is he absent today?
— Something _____ to him. [ ]
A. must happen
B. should have happened
C. could have happened
D. must have happened
“冷秋千尚挂下裙拖”出自《牡丹亭·拾画》中的《颜子乐》。