2026届广州市高三阶段训练(8月)化学试题
2026届广州市高三阶段训练(8月)化学试题于2025-08-22发布，目前已经汇总了2026届广州市高三阶段训练(8月)化学试题的各科答案和试卷，更多试卷答案请关注本网站。
本文从以下几个角度介绍。
- 1、2024广州市高三调研考化学
2、2024广州市高三二模化学
3、广州高考化学真题
4、2024广州高三化学一模
5、广州市高三阶段训练考试化学
6、2024广州高考化学
7、2024广州高三阶段训练化学
8、广州市高三二模2024化学
9、2024广州高三二模化学
10、广州2024高三二模化学
2026届广州市高三阶段训练(8月)政治试题
2026届广州市高三阶段训练(8月)化学试题
“People interested in the origins of the Americas want to know if the first humans arrived with dogs. Until we find these animals in old digging sites, we can only guess — it’s hard to confirm. This discovery is very significant.”
In a 2018 archaeological study, the same team found a lower leg bone from an adult dog-like animal at a site in Alaska. Carbon dating showed the animal lived 12,000 years ago, near the end of the Ice Age. More recently, in June 2023, the team dug up an 8,100-year-old jawbone from a similar animal at a nearby site.
For the new study, scientists performed chemical tests on these bones. They found salmon proteins, suggesting these animals ate fish regularly. This was unusual because dog-like animals at the time only hunted land animals, showing human influence.
While the team believes this is the earliest known relationship between humans and dogs, they say it’s too soon to be certain. A key question remains: “What defines a dog ” said Dr. Ben Potter, a co-author of the study and an archaeologist at the University of Alaska Fairbanks. Though these creatures acted and looked like dogs, they might be too ancient to be genetically connected to modern dogs we know today.
28. What is the main idea of the passage
A. A new study proves dogs originated in Alaska.
B. Ancient dogs survived the Ice Age by eating fish.
4、2026届广州市高三阶段训练(8月)物理试题
1、2026届广州市高三阶段训练(8月)化学试题
3、2026届广州市高三阶段训练(8月)地理试题
4、2026届广州市高三阶段训练(8月)化学试题
4、2026届广州市高三阶段训练(8月)物理试题
7.(2024扬州中考)如图所示,电源电压恒为6 V,敏感元件T的电阻随电流的增大而减小。电压表示数为2 V时,电流表示数为0.2 A,当电压表示数为2.4 V时,电流表示数可能是 ( )
A.小于0.18 A
B.等于0.18 A
C.大于0.18 A,小于0.2 A
D.大于0.2 A,小于0.24 A
欧姆定律的应用——计算
8.(2024重庆中考)将阻值为10 Ω的电阻R1与另一电阻R2接入电源电压恒定的电路,如图所示。闭合开关S,电流表A1的示数为0.45 A,电流表A2的示数为0.3 A。求:
2026届广州市高三阶段训练(8月)生物答案
