[天一大联考]2024-2025学年(下)广西高三最后一卷英语答案

[天一大联考]2024-2025学年(下)广西高三最后一卷英语答案于2025-05-29发布，目前答案胶囊网已经汇总了[天一大联考]2024-2025学年(下)广西高三最后一卷英语答案的各科答案和试卷，更多试卷答案请关注本网站。

本文从以下几个角度介绍。

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[天一大联考]2024-2025学年(下)广西高三最后一卷英语试题

[天一大联考]2024-2025学年(下)广西高三最后一卷语文试题

阅读下列短文，从文后各题所给的A、B、C、D四个选项中选出一个最佳答案。
When I was a boy, I was great at math. In grade school I went over the multiplication tables (乘法表) again and again ____16____ I remembered them. Then when I got to High School I had to take Algebra (代数). Suddenly, the numbers were letters, and everything was so ____17____ that I couldn’t understand it. Learning it felt like hitting my head ____18____ the wall. I felt like I would never understand it, never use it, and never need it in my life.
That last part was proven ____19____, though, several years later. I was working at a low-paid job, trying my best to ____20____ my young family. One day I found myself with just ____21____ dollars in my wallet until the next payday. The gas tank on my old car was ____22____ too, so I pulled up to a store and put five dollars worth of gas in the tank. As I was waiting in line to ____23____, I saw the woman in front of me crazily ____24____ through her wallet to find enough money to pay for two cartons of milk. For a second selfishness held back my heart, ____25____ then I walked forward and put down my last five dollars to help her get the milk for her children.
As I left the ____26____, I felt strange. My wallet was empty but my ____27____ felt full. I was poor but still felt like the ____28____ man in the world. It didn’t make sense to me mathematically. But then I ____29____ that I didn’t have to understand Algebra. Maybe I just had to enjoy it.
Love is a lot like Algebra. It can be a mystery that we never fully understand. The truth is the more Love we give, the more Love we have. The more we ____30____ it, the more it grows inside of us. Welcome the mystery then and enjoy all the riches of Love.
16. A. since B. if C. unless D. until
17. A. difficult B. easy C. boring D. tiring

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2、[天一大联考]2024-2025学年(下)广西高三最后一卷 数学答案

解得
（2）若表头内阻Rg＝149.5Ω，则
答：（1）电阻R1、R2的表达式分别为；；
（2）若表头内阻Rg＝149.5Ω，R1、R2的值分别为0.1Ω和0.4Ω。
20．金属导体的两端加上恒定电压，导体内部会形成由稳定分布的电荷所产生的稳定的电场，它的基本性质与静电场相同。金属中的自由电子除了做无规则热运动外，还要在电场力的作用下定向移动，从而形成电流，所以金属导体的电流跟自由电子定向移动的速率有关。这些获得附加定向运动速度的电子不可避免的会与晶格上的正离子频繁地发生碰撞，这些碰撞的宏观表现可以用“电阻”衡量。为了从微观的角度研究电流和电阻，我们设某一金属导体的横截面积为S，自由电子数密度（单位体积内的自由电子数）为n，自由电子的质量为m，所带电荷量为e。
（1）在该金属导体中，若自由电子定向移动的平均速率为v，试推导电流I和自由电子定向移动平均速率v的关系。
（2）经典统计理论认为：没有电场时，金属导体中的自由电子都以很大的速度做无规则热运动，自由电子沿导线方向的速度平均值为零。在导体两端加电压之后，该段导体内的电场可视为匀强电场，金属中的自由电子受到电场力的驱动，在原热运动基础上叠加定向加速运动。在定向加速运动过程中自由电子与导体内的金属离子不断碰撞，碰撞后电子的速度发生改变，沿各方向速度均可出现，因此可以认为这些自由电子沿导线方向的平均速度又变为零。能量的转移引起晶格振动加剧，金属温度升高。碰撞阻碍了自由电子的定向运动，结果是大量自由电子定向移动的平均速度不随时间变化，这就是电阻形成的原因。

[天一大联考]2024-2025学年(下)广西高三最后一卷数学答案