2023安徽A10联盟最后一卷语文答案

17.(不小题满分12分)解析:(1)因为(a-b)(sinA+sinB)=sinC(c-3b),由正弦定理得(a-b)(a+b)=c(c-3b),整理得a2=b2+c2-3bc由余弦定理得c0A=+d=2-b=,因为A∈(0,x),所以,A=6分(2)由(1)得A=5,所以S△m-smA=2im=2+/,所以b=8+4√3分由余弦定理得a2=b2+c2-2bccsa=b2+c2-2bcos6=b2+c2-3bc≥2bc-√3bc(2-√3)bc=(2-3)(8+4√3)=4,当且仅当b=c=V2+6时取等号,所以a2≥4,因为a>0,所以a∈[2,+∞)…12分

1.参考答案:①美在村庄环境改善。②美在村民关系和谐。④美在村民文化生活丰富。1美在乡村敬老孝道等·治文亿建设(或乡村治珪体系建设)。(言之成理,怙绐分)5.参考答案:①)戥行绿水青山的生态文化。仇疰村注意改善乡村环境,头巷尾干整洁绿植嵬坦。②弘扬优秀传统治玒文化。仇主村成立了以“村贤”为主的村民亡讲团,发挥乡贤文化优势。③推进乡村教育和公共文化瑕务。仉庄村聘请传统文化专家,通过络平台提升乡民的文化水平。(言之成理,酌情给分

33.(1)BCD(2)①10cm;②450K或177C解析:①气缸水平时,气体压强P=1×10°Pa①气缸侧壁与水平面成30角时,气体压强P=P+mgo60=1.1×10Pn②气体等温变化PL1S=P2xS③解得x=10cm④②保持气缸侧壁与水平面成30角,加热前气体温度T=273+27K⑤,加热后气体温度T2气体等压变化A=+5⑥解得T2=450K或2=177℃⑦评分标准:①④⑤⑦各1分,②③⑥各2分。

第二节书面表达【写作思路】根据试题要求,考生需要写一篇记叙文,记述身边一位值得尊敬和爱戴的人。首先考生需要介绍自己最尊敬和爱戴的人是谁,简单地介绍一下他(她)。然后,陈述为什么他(她)值得尊敬和爱戴。最后,可以对前文进行一个总结,使文章结构严谨。本文的写作重点在"尊敬和爱戴的原因",考生可围绕这个要点适当拓展,从性格特点、处事风格等方面展开写作。【范文赏读】The most beloved and respected person around me is my teacher, Ms LiThough she has been teaching English for twenty years, she is still passionateabout teaching. She is kind and considerate towards us just like our dear motherWe all respect her because she always tries new ways to make her classes livelyand interesting. Hardworking and knowledgeable, she is one of the best teachersin our school. When we have a problem, we will turn to her for help. She alwaystalks to us patiently and helps us to find a solution. In our eyes, she is not onlyour teacher, but also our best friend. Those are why she deserves our respect【亮点词句】亮点词汇: beloved, respected, be passionate about, be consideratetowards, turn to sb. for help, in one's eyes亮点句式:Why引导的表语从句( why she deserves our respect)