题目

已知数列,,,…,,…,它的前n项的积大于32 006,则正整数n的最小值是A.2 100                B.2 006                 C.209                D.210 答案：D  解析：前n项之积为=＞32 006＞2 006n2+n-22×2 006＞0n＞209,∴nmin=210.故选D.Dear Sir，Today I see an ad(广告)．I know you ______ two swimming teachers for your club on weekends.I want to be a(n) ______ teacher.My last name is White.My ______ name is Gina.I am 20 years old.I like swimming and I ______ swim well.I like kids and I am ______ with kids.I can help ______ learn to swim.I can also play ______ drums.I like English and I ______ stories very well.My e－mail address(地址) is gina009@sina.com.If(如果) I can ______ in your club，please ______ me.My telephone number is 345－0098.Yours，Gina White【1】A. help B. see C. need D. have【2】A. swimming B. piano C. English D. art【3】A. first B. family C. last D. English【4】A. must B. must not C. can D. can not【5】A. fine B. good C. nice D. OK【6】A. them B. him C. her D. you【7】A. a B. an C. the D. /【8】A. talk B. sing C. speak D. tell【9】A. am B. is C. are D. be【10】A. call B. show C. meet D. thank