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试题答案

本文从以下几个角度介绍。

    1、楚天协同
    2、湖北省楚天学子2024
    3、2024年湖北省楚天学子
    4、2024年湖北省楚天学子

3、楚天协作体2025-2026学年上学期高三9月起点考试地理试题


2、楚天协作体2025-2026学年上学期高三9月起点考试生物试题


D．They discovered 660 entirely new species.
25．Why does the customs officer state "Every harmful creature we catch saves our environment"
A．Because captured animals are sold to zoos to support environmental projects.
B．To emphasize that preventing biological invasions protects ecological balance.
C．To encourage citizens to keep foreign pets instead of buying local animals.
D．To show that technology cannot work without international cooperation.
（2025八下·深圳期末） 以下是一篇短文。请阅读全文并从下列方框里的六个句子中选择五个还原到原文中，使原文的意思完整、连贯。


B
Alexander Graham Bell was a famous inventor. He was born in Scotland in 1847. Bell was interested in sound. He wanted to be able to send sound through a wire (电线). He worked very hard on his invention. He tried many different ideas, but nothing worked.
One day, Bell was working in his lab. He was trying to fix a problem with his telephone. He was talking to his assistant, Watson, who was in another room. Suddenly, Bell heard Watson's voice coming through the wire. "Mr. Watson, come here. I want you!" Bell shouted. Watson heard Bell's voice clearly. He ran into Bell's room. "I heard you!" he cried.
Bell and Watson kept working on the telephone. They made it better and better. In 1876, Bell got a patent (专利) for his telephone. This meant that only he could make and sell telephones. Other people had to ask him if they wanted to make or sell telephones.
The invention of the telephone changed the way people communicate. Before the telephone, people had to write letters or use telegraphs to talk to people far away. Now, people can talk to each other easily on the telephone.
26. Where was Alexander Graham Bell born
A. In America. B. In England. C. In Scotland. D. In Canada.


2、楚天协作体2025-2026学年上学期高三9月起点 地理答案


2、楚天协作体2025-2026学年上学期高三9月起点考试生物答案


2、楚天协作体2025-2026学年上学期高三9月起点考试地理答案


1、楚天协作体2025-2026学年上学期高三9月起点考试化学答案


3、楚天协作体2025-2026学年上学期高三9月起点考试化学试题


2、楚天协作体2025-2026学年上学期高三9月起点考试数学答案


A. 甲中所有碳原子一定共平面
B. 乙分子不存在顺反异构体
C. 甲→ 乙的转化经历了加成反应、消去反应
D. 甲、乙均不能使酸性 KMnO4 溶液褪色
10. 在给定条件下，下列制备过程涉及的物质转化均可实现的是
A. 制 ClO2 ：NaCl(aq) 通电 Cl2(aq) SO2 水溶液 ClO2
B. 纯碱工业：饱和NacI(aq)— →NaHCO5(S)-避→Naz co;(S)


(1)800 ℃时,k的值为　　　　(只写数值,不写单位)。
(2)若800 ℃时,初始浓度c(CO)=c(H2)=3.00×10-3mol·L-1,则生成CH3OCH3的初始速率为　　　　 mol·L-1·s-1。
8.(3分)设为相对压力平衡常数,其表达式写法:在浓度平衡常数表达式中,用相对分压代替浓度。气体的相对分压等于其分压(单位为kPa)除以p0(p0=100 kPa)。在某温度下,原料组成n(CO)∶n(NO)=1∶1,发生反应:2CO(g)+2NO(g)N2(g)+2CO2(g),初始总压为100 kPa的恒容密闭容器中进行上述反应,体系达到平衡时N2的分压为20 kPa,则该反应的相对压力平衡常数=　　　　　。
9.(6分)(1)已知:N2(g)+3H2(g)2NH3(g),且该反应的v正=k正·c(N2)·c3(H2),v逆=k逆·c2(NH3),则反应N2(g)+H2(g)NH3(g)的平衡常数K=　　　　　 (用k正和k逆表示)。
(2)500 ℃时,向容积为2 L的密闭容器中通入1 mol N2和3 mol H2,模拟合成氨的反应,容器内的压强随时间的变化如下表所示:
时间/min 0 10 20 30 40 +∞
压强/MPa 20 17 15 13.2 11 11


3、楚天协作体2025-2026学年上学期高三9月起点考试化学答案