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张家口市2026届高三年级第二次模拟考试(4月)历史答案

xxmadmin 2026-04-23 11:41:39

张家口市2026届高三年级第二次模拟考试(4月)历史答案于2026-04-23发布，目前已经汇总了张家口市2026届高三年级第二次模拟考试(4月)历史答案的各科答案和试卷，更多试卷答案请关注本网站。

试题答案

本文从以下几个角度介绍。

张家口市2026届高三年级第二次模拟考试(4月)地理试题

We are the products of evolution,and not just evolution that occurred billions of years ago.As scientists look deeper into our genes(基因),they are finding examples of human evolution in just the past few thousand years.People in Ethiopian highlands have adapted to living at high altitudes.Cattle-raising people in East Africa and northern Europe have gained a mutation (突变) that helps them digest milk as adults.
On Thursday in an article published in Cell, a team of researchers reported a new kind of adaptation—not to air or to food,but to the ocean.A group of sea-dwelling people in Southeast Asia have evolved into better divers.The Bajau,as these people are known,number in the hundreds of thousands in Indonesia,Malaysia and the Philippines.They have traditionally lived on houseboats;in recent times,they've also built houses on stilts (支柱) in coastal waters.“They are simply a stranger to the land,” said Rodney C.Jubilado,a University of Hawaii researcher who studies the Bajau.
Dr.Jubilado first met the Bajau while growing up on Samal Island in the Philippines.They made a living as divers,spearfishing or harvesting shellfish.“We were so amazed that they could stay underwater much longer than us local islanders,” Dr.Jubilado said.“I could see them actually walking under the sea.”
In 2015,Melissa Ilardo,then a graduate student in genetics at the University of Copenhagen,heard about the Bajau.She wondered if centuries of diving could have led to the evolution of physical characteristics that made the task easier for them.“It seemed like the perfect chance for natural selection to act on a population,” said Dr.Ilardo.She also said there were likely a number of other genes that help the Bajau dive.
8.What does the author want to tell us by the examples in paragraph 1
Environmental adaptation of cattle raisers.
New knowledge of human evolution.

张家口市2026届高三年级第二次模拟考试(4月)生物试题

2、张家口市2026届高三年级第二次模拟 (4月)生物答案

(2)
(3)
(4)
33.（每空2分，共16分)
(1)
(2)J
(3)

5、张家口市2026届高三年级第二次模拟考试(4月)语文答案

6、张家口市2026届高三年级第二次模拟考试(4月)政治答案

2、张家口市2026届高三年级第二次模拟考试(4月)政治答案

C．， D．，
3．质量为M的带有光滑圆弧轨道的小车静止置于光滑水平面上，如图所示，一质量也为M的小球以速度v0水平冲上小车，到达某一高度后，小球又返回小车的左端，重力加速度为g，则（）
A．小球以后将向左做平抛运动
B．小球将做自由落体运动
C．此过程小球对小车做的功为Mv02
D．小球在圆弧轨道上上升的最大高度为
4．如图，光滑水平面上有一具有光滑曲面的静止滑块B，可视为质点的小球A从B的曲面上离地面高为h处由静止释放，且A可以平稳地由B的曲面滑至水平地面。已知A的质量为m，B的质量为3m，重力加速度为g，试求：

张家口市2026届高三年级第二次模拟考试(4月)化学答案

张家口市2026届高三年级第二次模拟考试(4月)数学试题

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