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born in theState of Qi.that hee)there for several generations.(use)his theories and philosophy of warfare,Suto him by Sun and was msagainst some of th...

18【答案1a=号2)及-知【解析】(1)设等差数列的通项公式an=a1十d(n一1)，由于a品+1-a2=2n,令n=1,则a号-af=(a1十d)2-a=2,…2分将a=2代入，解出d=-2或d=1,由于(a}各...

几乎所有人来说，生活中最让人愉快的事情是与他人在一起聊天。此处进一步说明交流是人类互动的基本方面；后文中的It指代该句中的Communication。17.F。此空设于...

W:No,I'm on a diet now.Why not call room service since it's too late?M:All right.I'm really tired after such a long flight.Text8W:Henry,do you want to...

(47.Tom can read if he wants to improve his(B34.Even though my little brother brings methinking ability.some troubles I still love himA.The Boxcar Chi...