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3、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想政治Q(二十)20试题


2、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想生物Q(二十)20试题


C. Delegates must apply their knowledge locally. D. Delegates may ignore them without consequences.
B
At age 15, Zhao Yicheng has taken the speed climbing community by storm following his two stunning climbs of 4.68 and 4.65 seconds—— unofficially faster than US athlete Sam Watson’ s 4.74-second world record set at last year's Paris Olympics.
Zhao's record-breaking moment happened during a trial event for China's national team on March 26. Since the event was not approved by the International Federation of Sport Climbing (IFSC), his achievement was not officially recognized. Nevertheless, evidently Zhao has emerged as one of China's most promising speed climbers.
Born in 2009 in Suzhou, Zhao’ s journey with speed climbing began at age 5, when a friend dragged him to a climbing gym. What started as a weekly hobby soon occupied his weekends. By 9, he had already won medals at multiple youth events. After winning the 2023 IFSC Youth World Championships in Seoul, South Korea, Zhao had to choose between school and sports. At that time, he was a top middle school student, but he chose to dedicate four to eight years to speed climbing to see how far he could go.
In September 2023, Zhao joined the Shanghai speed climbing team. During the 2023-24 winter camp, his times improved from 5.4 seconds to 4.99, reaching the“sub-five” milestone. He kept that strong momentum in the 2024season, clocking 4.93 seconds to win the national speed climbing championships in September.
Zhao credits his quick progress to scientific training and active thinking. After his first winter training camp


A．forest B．school C．zoo
38．Little man No. 3 can _____. ( )
A．feed ducks and chickens B．play with Snow White C．make salad
39．Snow White and little men have a _____ life. ( )
A．sad B．happy C．bad
40．Which is wrong ( )
A．They work hard every day. B．Little man No.1 can draw beautiful pictures.


3、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想历史Q(二十)20试题


3、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想英语Q(二十)20试题


5、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想生物学Q(二十)20试题


1、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想物理Q(二十)20试题


3、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想物理Q(二十)20试题


3、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想化学Q(二十)20试题


15．(2025·浙江名校联考)Na2CO3和NaHCO3是重要的无机化工产品，广泛应用于食品、化工、医药等领域。如图是利用天然碱(主要成分为Na2CO3、NaHCO3和少量NaCl)制备Na2CO3和NaHCO3的工艺流程。
完成下列填空：
(1)操作①为________________。
(2)碳化装置中反应的离子方程式为__________________________________　___________________________________________________________________。
(3)对比索尔维制碱法，说明利用天然碱制碱的优势：____________________　__________________________________________________________________。
(4)为了测定产品中小苏打中NaHCO3的含量，进行以下实验。
实验步骤：


C．植物光合作用能缓解温室效应
(2)实验室制取氧气。实验室中可采用如图2所示装置加热高锰酸钾固体制取氧气。
①A中加热高锰酸钾固体产生氧气的化学方程式为 。
②若要收集一瓶氧气，收集装置可选择 （在B~D中选）。
(3)分子筛法制取氧气。利用变压吸附技术，以分子筛为吸附剂制取氧气的工作原理如图3所示，在25℃时，测得分子筛对、的吸附量随压强的变化情况如图4所示。
①过程1中，空气通过分子筛吸附材料时，25℃时吸附压越大越有利于分离和，原因是 。
②过程2中，采用 （选填“升高”或“降低”）压强的方法，能使被吸附的气体释放出去（解吸气体），使分子筛吸附材料恢复吸附能力。


3、衡水金卷先享题 2025-2026高三一轮复习周测卷/思想化学Q(二十)20答案