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【简答题】
已知数列{a n }的前n项和为S n ，且S n =2a n -2（n=1，2，3....），数列{b n }中，b 1 =1，点P（b n ，b n+1 ）在直线x-y+2=0上。 （I）求数列{a n }，{b n }的通项a n 和b n ； (II) 设c n =a n b n ，求数列{c n }的前n项和T n ，并求满足T n <167的最大正整数n。
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举一反三
【简答题】完形填空。 Stuart and Steve were twin brothers, Stuart loved to play basketball. But Steve loved to read books. One day Stuart was playing basketball 1 he fell and broke his leg. When they took him to the ...
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A.
Stuart Scott was smart, quick-witted, and looked like him.
B.
Stuart Scott was tall, handsome, and looked like him.
C.
Stuart Scott was humorous, sensitive, and looked like him.
D.
Stuart Scott was smart, quick-witted, and looked like his best friend.
【简答题】导致会计分期假设的基本前提是( )。【第一章第三节】
【多选题】下列说法中,正确的有:
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“运筹帷幄中，决胜千里外”出自《史记》
B.
“运筹帷幄中，决胜千里外”是汉高祖刘邦对他的谋士张良的赞誉
C.
近代运筹学起源于军事、管理、经济
D.
布拉凯特是英国数学家
【简答题】Stuart and Steve were twin brothers. Stuart loved to play basketball. But Steve loved to read books. One day Stuart was playing basketball 1 he fell and broke his leg. When they took him to the hospit...
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