题目内容
{a,b}={b,a}
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P(A∩B)≠P(A)∩p(B) （P(S)表示S的幂集）
如果A⊆B,B⊆C，则A⊆C
Peter took me in his boat and raised me on board. About four o’clock, we _________(1) three miles to the swamp (沼泽). My great ___________(2) of snakes had been increased by the bite I had received. But I was in no situation to choose, and I gratefully accepted the best that my poor friends could do for me.A very small garret (顶楼) was between the boards and the roof. The garret was only nine feet long and seven feet wide. The air was stifling (沉闷的); the darkness total. The_________(3) and mice ran over my bed. It seemed horrible to sit or lie in a cramped (狭促的) position day after day, without one _____________(4)of light. Yet I would have chosen this, rather than my lot as a slave ...After seven years in my _______________________(5), I finally secured a passage to New York in a boat with the help of my friends and family. However, I was rather ________________(6) when I got to New York: It made me _______(7) to find the north followed the customs of __________(8). We were carried away in a large, rough car. It was crowded with people. _______________________(9) babies were on the beds. The fumes of the whiskey and the__________(10) tobacco smoke were sickening to my senses.
Ladies and gentlemen:This is a 1) __________ moment for America. I, unfortunately, will be going back to 2) __________after my remarks. Secretary Rod Paige and the Lieutenant Governor (副州长) will take the podium (讲台) and discuss 3) __________. I do want to thank the folks here at Booker Elementary School for their 4) __________. Today we’ve had a national tragedy. Two 5)__________ have crashed into the 6) __________Center in an 7) __________terrorist attack on our country. I have spoken to the Vice President, to the 8) __________of New York, to the Directorof the 9) __________, and have ordered that the full 10) __________ of the federal government go to help the victims and their families, and to conduct a full-scale 11) __________to hunt down and to find those folks who committed this act. 12) __________against our nation will not stand. And now if you would join me in a moment of 13)__________. May God bless the victims, their 14) __________, and 15) __________.Thank you very much.
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