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试题答案

本文从以下几个角度介绍。

    4、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)地理试题


    2、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)化学试题


    20．that, little, Who's, girl ( ) （连词成句）
    　 　
    21．your, new, English, Here's, book (.) （连词成句）
    　 　
    22．nice, a, What, jacket (!) （连词成句）
    　 　
    23．to, Welcome, Robot, Museum (. )（连词成句）


    Firstly, remind yourself that some level of anxiety is normal, and feeling a little stressed can actually improve your performance. Encourage yourself with self-statements like “I can handle this.” 37 Use positive imagery to visualize yourself successfully completing the exam. Furthermore, being well-prepared is the key, so organize your study material and take time over several days, or even weeks, to review it. Avoid cramming (填满) right before the exam, as this can heighten anxiety 38 Get good sleep, not just the night before the exam. It can help you strengthen the memories you created during study time.
    39 Budget your time and pace yourself so you have adequate time to finish the test. Don’t skip over directions ― read them carefully! If you get stuck on a question or section, skip and then return to it later. If you feel you have “gone blank,” allow yourself to mark some response. anyway. If you are blank about an essay question, just start writing whatever you know. 40
    Finally, after the exam is over, it’s important to reflect on your experience and reward yourself for the changes you made in your habits. Remember, while testing is an unavoidable part of a student’s life, preparation and calming strategies can turn anxiety into confidence.
    A. However, no one feels excited
    B. Secondly, prepare your review materials
    C. Before the winter holiday comes the final exam.
    D. Practice relaxation techniques and deep breathing


    4、山西省2025年阳泉市高三第二次模拟测试(阳泉二模) 试题


    6、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)语文试题


    2、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)语文试题


    5、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)数学试题


    4、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)地理试题


    4、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)政治试题


    解析：设牛胰岛素的相对分子质量为，则，解得。
    7.答案：（1）
    （2）
    （3）、、、
    解析：（1）1 mol A中含C、H、O的物质的量分别为，，所以A的分子式为；由于A的核磁共振氢谱显示有4组峰，峰面积比为1:1:2:3，可推出A的结构简式为。
    （2）由于B是A的同系物，其相对分子质量比A的少14，则B应该缺少一个，故B的结构简式为。
    （3）A和B在一定条件下可能形成的二肽的结构简式有、、、。


    二、填空题
    15.
    【答案】（1） （2） ①. 铬 ②. 第四周期VIB族
    （3） ①. ② ②. C
    （4） ①. 增大 ②. < ③. >
    16.
    【答案】（1） ①. ②. 0.15mol·L 1·min 1 （2）C


    3、山西省2025年阳泉市高三第二次模拟测试(阳泉二模)生物答案