我的一位老师曾经建议：如果你能想象自己去做任何别的事，那你或许应该去做那件事。
Today’s puzzle is a new twist on a classic genre: the “common knowledge” hat riddle in which logicians deduce facts about their hats based on what they know, and what they know others know.
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而伴随美国失业率在模型中被推高至 10.2% 的警戒线，宏观总需求出现结构性坍塌。
Трамп высказался о непростом решении по Ирану09:14