1. His suggestion is worth ________ (采纳). 2. Can you give me some ________ (建议). 3. Yuan Longping is called "Father"of Hybrid rice,and his achievements go ________ (超出) China. 4. Columbus ________ (发现) America in 1492. 5. The results were ________ (公布) a moment ago. 6. It has a bad ________ (影响) on the blood. 7. We can take a deep ________ (呼吸) when we are nervous. 8. Kids ________ (低于) 5 years old can't play with this kind of toy. 9. The ________ (小偷) names were listed in yesterday's newspaper. 10. The dresses ________ (本身) are made of common materials, but they sell well because of the famous designer. 11. Zhang Ziyi is one of Hollywood's greatest ________ (女演员). 12. The book says that they were the first ________ (定居者) on this island. 13. He didn't begin to learn Japanese until he was in his ________ (四十五六岁). 14. She is an ________ (经验丰富的) teacher. 15. He kept ________ (吵架) with his cousin.
① name is Lily. I'm eleven. I'm ② America. My mum and dad are workers in a big factory. They ③ to work every day. I ④ a sister. We ⑤ like each other. She is a middle school student and comes home in the afternoon. Everyone in my family likes and looks ⑥ me. My sister and I are in ⑦ school. I'm a new student in my class. There ⑧ forty-two students in ⑨ class, twenty boys and twenty-two girls. We have our lessons from eight o'clock in the morning ⑩ four o'clock in the afternoon.
（ ）①A. His （ ）②A. to （ ）③A. goes （ ）④A. have （ ）⑤A. looks （ ）⑥A. for （ ）⑦A. different （ ）⑧A. is （ ）⑨A. his （ ）⑩A. from
B. Her B. from B. went B. has B. looked B. after B. difference B. are B. our B. for
C. Our C. for C. are going C. had C. look C. at C. same C. were C. their C. to
D. My D. with D. go D. having D. to look D. up D. the same D. was D. her D. with
的首项
，前n项和为Sn ,且满足
( n∈N*) ．则满足
的所有n的和为 ．
配套，问怎样截取所得毛坯总数最多？
