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试题答案

本文从以下几个角度介绍。

    1、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试地理试题


    2、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试生物试题


    33. The speed of a wild boar can be as fast as a car, reaching 100km/h.
    34. In Picture A, “b” can make the wild boars more dangerous than pigs.
    35. Picture B means to keep a close watch on wild boars and control the numbers.
    九、阅读下面两篇短文，根据短文内容选择正确答案。（共10小题，每小题2分；计20分）
    A
    You don’t have to be an adult to make an invention. Some kids are very creative and they use their creativity to invent new things. In the following passage, we will introduce some young yet great inventors.
    One winter day in 1994, 10-year-old Kathryn Gregory was outside playing with snow with her younger brother. She felt her wrists (手腕) started to hurt because they were cold and wet. To solve this problem, she invented Wristies. Later, Kathry n started Wristies, a company to make and sell Wristies. Now, people also wear Wristies while practicing the guitar, or while sending text messages in cold weather.


    No one.
    ( )(3)Other parents and the firemen wanted to pull him off the ruins because they thought .
    he was mad.
    all the children had died in the earthquake.
    he was too dangerous to others.
    it was not his job to dig.
    ( )(4)How many students were already dead when the father found them in the ruins


    5、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中 语文试题


    6、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试化学试题


    3、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试物理试题


    2、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试历史试题


    1、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试生物学试题


    5、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试英语试题


    C、核电荷数大于核外电子数的粒子一定带正电荷，则为阳离子，符合题意；
    D、催化剂在化学反应前后质量和化学性质不发生变化，符合题意。
    故答案为：CD。
    【分析】A、根据爆炸可能是物理变化分析；
    B、根据单质是由同种元素组成的纯净物分析；
    C、根据核电荷数大于电子数的粒子为阳离子分析；
    D、根据催化剂一变两不变特点分析。


    盐析 变性
    内涵 　加入一定浓度某些无机盐溶液,使蛋白质的溶解度降低而析出 　在某些物理或化学因素的影响下,蛋白质的性质和生理功能发生改变的现象
    条件 　较浓的轻金属盐或铵盐溶液,如(NH4)2SO4、 Na2SO4溶液等 　加热、紫外线、X射线、重金属盐、强酸、强碱、甲醛等
    特点 　可逆,蛋白质仍保持原有活性 　不可逆,蛋白质已失去原有活性
    应用 　分离、提纯蛋白质,如向蛋白质溶液中加入饱和Na2SO4[或(NH4)2SO4]溶液,使蛋白质析出 　消毒,灭菌,给果树施用波尔多液,保存动物标本等
    题组三　核酸的性质
    5.[2025·江苏苏州名校联盟联考] 核酸是生物体遗传信息的携带者,被誉为“生命之源”。下列有关说法中不正确的是 (　)


    3、[天一大联考]焦作市普通高中2025-2026学年(上)高三年级期中考试化学答案