2023四川省攀枝花市2023届高三第三次统一考试理科综合试题答案

2023四川省攀枝花市2023届高三第三次统一考试理科综合试题答案试卷答案,我们目前收集并整理关于2023四川省攀枝花市2023届高三第三次统一考试理科综合试题答案得系列试题及其答案，更多试题答案请关注微信公众号：趣找答案/直接访问www.qzda.com(趣找答案)

2023四川省攀枝花市2023届高三第三次统一考试理科综合试题答案试卷答案，以下是该试卷的部分内容或者是答案亦或者啥也没有

17.(1)设等差数列{an}的公差为d,因为S3=0,a4=-2.3×241所以+3d21+d=0化简得解得+3d2…………………………………4分所以an=a1+(n-1)d=1+(n-1)(-1)2-n………6分(2)由(1)可知b=-an+2=-(2-n)+7分所以bb+2n(n+2)I-n+…………………………………*…………*………*…………*………*9分所以T=[(1--)+(-1)+()+1n+1nn+2]=2(n+1)(n+2)……………………12分

10.D(3为整数,则n除以3,5的余数均为2,n=32故应选D.)

1.D【解析】根据表格,可知1893--1910年,整体手工制品的出口额虽上升,但占的比率却在下降,而机制工业品出口额及比值都快速增长,结合所学,这段民族资本主义发展第一次高潮,D项正确;A项与材料内容无关,排除;甲午战争的失败宣告洋务运动的破产,B项错误;由表格可知,传统手工业出口比值虽下降,但仍导地位,C项错

析〕根据表格信息,可知参加第一届政协议的代表来源非常广泛,几乎涵盖了当时各个阶及各类人士,体现了民情民意,C项正确;仅由表格,不能得地位,A项错误;第政协会议代表由社会各界协商推荐,不是由普选生,B项错误;统一战线存在于国民时期,项错误

28.(14分,每空2分)(1)CH (g)+CO, (g)= 2C0(g)+ 2H, (g) AH=+247 kJ/mol(2)该温度范围内温度升高,对反应①的影响比反应②明显温度升高,反应①的速率增大得比反应②更明显(3)77.8%(或(或21或2.08)减小压强、增大H2O和CH4的比例(其他合理即可)(4)电催化重整使得重整后的催化剂的比表面积较大,Ni粒径较小,从而催化剂效率更高,反应速率更快(其他合理答案也可得分)

第三节One possible versionParagraph 1Finally, afler struggling for a minute or tuo, I still gotpulled underwater. I told myself I should never give upThen I pulled the weed again with great efforts. The weedfinally broke. I swam back to the surface to take a debreath. I saw two young men in canoes, racing each other.I was exhausted and shouted for help. The two men saw meand raced towards me. By the time they reached me, I hadbeen already unconsciousParagraph 2When woke up, I was in an empty room lying on abed. It was not until a doctor came into the room that I realized that I was in a hospital. Jimmy and Bobby told me thetwo young men brought me to the shore and sent me to thehospital. After a few minutes, my parents with half angryand half worried faces walked in. My parents scolded me ifor running out of the house secretly but were also glad thatI was not seriously injured. I will never forget that terrifyingexperience. Neither will I ever want to show off again