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试题答案

本文从以下几个角度介绍。

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3、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)英语试题


6、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)语文试题


But things began to change as she was doing the chores. Brushing the puppy, she found it was fun with so many soap bubbles. Then yard work followed, where Kayla helped to pick up sticks. She pretended the small sticks were basketballs, and shot them into a large trash can. So the work was done with great pleasure. Kayla felt proud to see how much better the yard looked. When she finished her meaningful chores, Kayla enjoyed relaxation in her tree house. The lemonade tasted more wonderful after a day of hard work.

Did you know the earliest form of writing began as a “bookkeeping system” Around 8500 BCE, in
Mesopotamia (modern-day Middle East), farmers and artisans used small clay tokens shaped like cones,
disks, and cylinders to track goods. For example, six cone-shaped tokens might represent six bags of grain,
while eight cylinders could stand for eight livestock. These 3D symbols were the world’s first “written”
records.
About 5000 years later, people started sealing these tokens inside clay envelopes to keep track of debts.
But how could they remember what was inside They pressed 2D symbols of the tokens onto the envelopes’


5、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)历史试题


3、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)历史试题


3、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)数学试题


6、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)生物学试题


3、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)政治试题


5、文萃中学2024~2025学年度高二第二学期第一次月考(25410B) 生物学试题


三、实验探究题。（每空1分，共7分）
17. 某化学兴趣小组同学用足量稀盐酸除去铁钉表面的铁锈(主要成分是Fe2O3)时，发现反应开始时铁锈消失，有气泡产生，溶液颜色为黄色，放置一天后黄色溶液变为浅绿色。同学们对此异常现象展开探究。
【查阅资料】①FeCl3溶液呈黄色；②Fe2+在空气中易氧化成Fe3+。
探究一：探究溶液变色的本质
【做出猜想】
（1）猜想1：溶液变浅绿色与_______有关；
猜想2：溶液变浅绿色与铁有关；


（5）使冷凝为液体，减少挥发


3、文萃中学2024~2025学年度高二第二学期第一次月考(25410B)数学答案