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试题答案

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    1、东北师大附中高三第三次摸底考试化学"
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4、东北师大附中2025-2026学年高三上学期第三次摸底政治试题


5、东北师大附中2025-2026学年高三上学期第三次摸底化学试题


（2024·聊城）There was a very mean man named Mr. Black who lived on the sixth floor of an apartment building. He was so impolite to his neighbors that no one even knew his first name was Adam. He never said hello to anyone, and he left his rubbish out in the hallway. He always complained (抱怨) about all his neighbors and the noise they made. He even got upset when the couple who lived next door to him, Catherine and David, had a baby. Instead of saying congratulations, he loudly complained about how the baby would surely cry all night.
One day when he was leaving his apartment, Mr. Black saw that his rubbish was gone. In its place, he found a note from David. "Good morning, Mr. Black. I saw your rubbish here, and since I was on my way out, I picked it up for you. I wanted to save you a trip. Have a nice day, David." However, Mr. Black decided to ignore this act of kindness. He began thinking about the terrible traffic he would surely have to deal with on his way to work.
But as time went on, Mr. Black started to feel a little silly. No matter how impolite he was, the couple always smiled at him and politely said hello. It became harder and harder for him not to simply say hello back.
After a few weeks, Mr. Black was always happy to see the couple in the hall. They even started calling him Adam. Later on, they invited Mr. Black into their apartment for a cup of coffee. Mr. Black was very glad that they treated him nicely. He was so upset about it that he had been impolite to everyone he knew. He realized that he should try to do the same with the people he met.
25．Which word can best describe Mr. Black according to Paragraph 1
A．Serious. B．Unfriendly. C．Strict.
26．Who took out the rubbish for Mr. Black


water pollution
air pollution
in danger
food chain
natural resources
live in harmony with
save energy


1、东北师大附中2025-2026学年高三上学期第三次摸底英语答案


6、东北师大附中2025-2026学年高三上学期第三次摸底政治答案


3、东北师大附中2025-2026学年高三上学期第三次摸底英语答案


1、东北师大附中2025-2026学年高三上学期第三次摸底语文答案


4、东北师大附中2025-2026学年高三上学期第三次摸底英语试题


1、东北师大附中2025-2026学年高三上学期第三次摸底地理答案


B．b、c、e的一氯代物均有三种
C．五种物质中，只有a分子的所有原子处于同一平面
D．a、b、c、e能使溴的四氯化碳溶液褪色
3．如图为酷似奥林匹克旗中的五环的有机物，科学家称其为奥林匹克烃，下列有关奥林匹克烃的说法正确的是(　　)
A．该烃的一氯代物只有一种
B．该烃分子中只含非极性键
C．该烃完全燃烧生成H2O的物质的量小于CO2的物质的量


⑤蜡烛燃烧生成水和二氧化碳，有新物质生成，属于化学变化；蜡烛燃烧过程中先是石蜡熔化变为液态石蜡，然后液态石蜡汽化变为气态石蜡，最终燃烧的物质是气态石蜡，三态变化过程没有生成新物质，属于物理变化，因此蜡烛燃烧过程中既发生了化学变化，又发生了物理变化，⑤正确。
综上所述，正确的是①⑤，故选：C。
7．A
【详解】A. 呼吸产生二氧化碳新物质，为化学变化，水是无色的为物理性质，此选项正确；
B. 石蜡融化没有新物质生产，为物理变化，石蜡燃烧生成二氧化碳和水，有新物质生成，属于化学变化，此选项错误；
C. 铁易生锈为化学性质，电灯通电发光为物理变化，此选项错误；
D. 酒精挥发没有新物质生产，为物理变化，酒精燃烧生成二氧化碳和水，为化学变化，此选项错误；


3、东北师大附中2025-2026学年高三上学期第三次摸底生物答案