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6、楚天协作体2025-2026学年上学期高三9月起点考试数学试题


3、楚天协作体2025-2026学年上学期高三9月起点考试生物试题


10. A. eat B. eating C. to eat
二、完形填空(本大题共10小题，每小题1分，共10分)
请通读下面短文，掌握其大意，从每小题所给的四个选项中选出一个最佳答案。
There is an unusual day in our village every year. On that day,some villagers make apple pies and other villagers 11 all the pies and choose the winner. My grandma takes part in it every time and won the second place twice! This year was 12 because I made an apple pie with my grandma.
In September, we practised making pies every Sunday, because we hoped our final pie would be the 13 . Grandma taught me how to cut an apple into pieces of right sizes and make beautiful pies.
After we put the pie into the 14 , we would play games together.Sometimes we 15 the radio, closed our eyes, and listened to music. As the smell of the pie 16 the air, we felt great. We always had a good time. However, my 17 classes came to an end soon. This made me 18 because I wanted more classes.
Finally, the big day came. Grandma and I worked slowly and 19 . This wasn't a day for mistakes. We wanted to make sure we followed every part of the recipe. In the end, our pie looked really wonderful. Later that afternoon, we knew the 20 . We were happy that our apple pie won the first place!


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5、楚天协作体2025-2026学年上学期高三9月起点 地理答案


1、楚天协作体2025-2026学年上学期高三9月起点考试化学答案


3、楚天协作体2025-2026学年上学期高三9月起点考试历史答案


3、楚天协作体2025-2026学年上学期高三9月起点考试地理答案


6、楚天协作体2025-2026学年上学期高三9月起点考试地理试题


5、楚天协作体2025-2026学年上学期高三9月起点考试生物学答案


【答案】D
12. 锌是促进人体生长发育的必需微量元素。如图为锌元素在元素周期表中的相关信息及原子结构示意图。下列说法不正确的是
A. 锌属于金属元素 B. 锌原子的中子数为30
C. 锌的相对原子质量为65.38 D. 锌原子在化学反应中易失去电子形成Zn2+
【答案】B
13. 下列实验装置及操作正确的是
A加热胆矾固体 B测空气中氧气含量 C液体的量取 D保存氧气


D.充气后,A气球的质量一定大于B气球的质量
12.设NA为阿伏加德罗常数的值,下列说法正确的是(　　)
A.3.2 g O2和O3的混合气体中含有的氧原子数目为0.2NA
B.过氧化钠与水反应时,生成0.1 mol氧气转移的电子数为0.1NA
C.标准状况下,22.4 L Cl2溶于水配成500 mL氯水,该氯水中Cl-数为2NA
D.10.44 g MnO2与足量12 mol·L-1的浓盐酸反应生成Cl2的分子数为0.12NA
13.用铁泥(主要成分为Fe2O3、FeO和少量Fe)制备纳米Fe3O4,其流程如图所示:


3、楚天协作体2025-2026学年上学期高三9月起点考试化学答案