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试题答案

本文从以下几个角度介绍。

    1、铜仁市2025届高三年级3月模拟政治试题


    6、铜仁市2025届高三年级3月模拟生物试题


    答案第1页，共2页

    D
    Diabetes (糖尿病) researchers from the Icahn School of Medicine at Mount Sinai have developed a new understanding of how human beta cell regenerative (再生的) drugs work. These drugs, developed at Mount Sinai, may hold promise for more than 500 million people with diabetes in the world. The results of this study were published this month in Cell Reports Medicine.
    Diabetes develops when cells known as beta cells become unable to produce insulin, a chemical substance essential to regulating blood sugar levels. While great progress has been made toward discovering a long-term treatment, none are appliable for millions of patients across the world.
    For more than 15 years, researchers at the Icahn School of Medicine at Mount Sinai have worked tirelessly to find a solution to cure diabetes by identifying a drug that could make human beta cells regenerate. In 2015, Mount Sinai researchers discovered the first such drug, called harmine. Harmine is a member of a class of drugs called DYRK1A inhibitors (抑制剂). Finally, in July 2024, they showed that harmine alone increases human beta cell mass by 300 percent, and if a GLP-1RA is added, by 700 percent.
    A key question has been how harmine causes beta cells to regenerate. In the newest study, the research team reports that the new, regenerated beta cells may be coming from an unexpected source: a second pancreatic cell type called alpha cells. Since alpha cells are abundant in people with type 1 and type 2 diabetes, they may serve as a source for new beta cells in both common types of diabetes.
    “This may mean that people with all forms of diabetes have a large potential ‘container’ for future beta cells, just waiting to be activated by drugs like harmine.” said Esra Karakose, corresponding author of the study. “A simple pill, perhaps together with a GLP-1RA like semaglutide, is affordable and accessible to the millions of people with diabetes,” said Dr. Stewart, another researcher.
    12. What can be inferred from drugs developed at Mount Sinai


    6、铜仁市2025届高三年级3月模拟生物试题


    4、铜仁市2025届高三年级3月模拟生物试题


    5、铜仁市2025届高三年级3月模拟 试题


    4、铜仁市2025届高三年级3月模拟生物试题


    1、铜仁市2025届高三年级3月模拟历史试题


    6、铜仁市2025届高三年级3月模拟化学试题


    C.分子
    D.单质
    7.保护环境，共建美丽地球家园。以下践行“低碳生活理念的做法不合理的是
    A.大力推广燃煤发电B.加强新能源汽车的研发和推广应用
    C.积极开展植树造林D.减少使用一次性木筷，倡导低碳生活
    8.空气是一种重要的资源。下列有关空气的说法正确的是
    A.食品包装袋中充入氧气可延长食品的保质期


    C 区分CuO和木炭粉 观察固体颜色
    D 验证质量守恒定律 将镁条放在空气中燃烧，比较反应前后固体的质量
    A. A B. B C. C D. D
    15. 下列4个图像，能正确反映对应关系的是
    A. 图1加热一定量的高锰酸钾固体 B. 图2用等质量等浓度的双氧水制取氧气
    C. 图3利用红磷燃烧测定空气中氧气的含量 D. 图4电解水一段时间
    二、非选择题：本大题共6小题，第16小题7分，第17小题8分，第18—21小题各10分。共55分。


    3、铜仁市2025届高三年级3月模拟化学答案