红叶教育2026届高三9月调研考试地理试题

红叶教育2026届高三9月调研考试地理试题于2025-09-11发布，目前已经汇总了红叶教育2026届高三9月调研考试地理试题的各科答案和试卷，更多试卷答案请关注本网站。

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红叶教育2026届高三9月调研考试地理试题

红叶教育2026届高三9月调研考试化学试题

A. Volunteers are essential for animal shelters.
B. Running an animal shelter is extremely difficult.
C. Many animals are suffering from bad conditions.
D. Age does not limit one’s ability to make a difference.
C
In an inspiring leap toward sustainable innovation, three high school students — Dhruv Chaudhary, Mithran Ladhania, and Mridul Jain — have invented a revolutionary salt-powered refrigerator called the Thermavault. The device requires no electricity and has the potential to transform life in communities without reliable access to power. Their invention just earned them the authorative 2025 Earth Prize and a $12,500 award, which the group plans to use to build 200 units and distribute them to 120 hospitals for realworld testing.
The Thermavault is an innovative cooling device that uses ionocaloric cooling (离子热冷却) — a method that relies on salt dissolving (溶解) in water to absorb heat. The main cooling agent is ammonium chloride, a type of salt that can lower water temperature by 28°C. For even stronger cooling, down to -10°C , the students mixed it with barium hydroxide octahydrate, allowing the device to freeze things when needed.

1、红叶教育2026届高三9月调研 生物学试题

6、红叶教育2026届高三9月调研考试数学试题

2、红叶教育2026届高三9月调研考试物理试题

5、红叶教育2026届高三9月调研考试历史试题

1、红叶教育2026届高三9月调研考试生物学试题

在第二次运动过程中，根据动能定理有，
解得，
故第一个过程中，拉力F在逐渐变大，且最大值一定大于F′，选项B正确，A错误；
C．第一次小球缓慢上升，可认为速度为零；第二次在水平恒力F′作用下，从P点开始运动并恰好能到达Q点，此过程中，小球恰能到达Q点，说明vQ=0，即两次拉力做功都等于小球重力势能的增加量，选项C错误；
D．在第二次运动过程中，根据平行四边形定则可知，重力与水平拉力的合力为，恒定不变，方向与竖直方向成角，整个过程中小球先加速后减速，当小球运动至轻绳与竖直方向成角时，速度最大，根据牛顿第二定律和向心力公式，
可得，
可知此时轻绳中的拉力亦最大，即第二种情况下轻绳的拉力先增加后减小，选项D错误。

红叶教育2026届高三9月调研考试生物答案