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试题答案

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3、拉萨市2025-2026学年上学期高三第一次联考数学试题


3、拉萨市2025-2026学年上学期高三第一次联考数学试题


A.On Monday.
B.On Tuesday.
C.On Friday.
3.How does the woman probably feel
A.Frightened.
B.Relaxed.
C.Amused.


It was a bright and sunny day, with the warm rays of the sun streaming through the classroom windows. But inside the classroom, Tom was feeling anything but cheerful. He had just received his test results, and they were far from what he had hoped for. His heart sank as he stared at the disappointing marks. Each digit seemed to laugh at his efforts, making his stomach churn (翻腾) with frustration.
Tom had always been a diligent student, and this failure came as a huge blow. He couldn't understand how he had performed so poorly when he had put in so much effort. He had spent countless late-night hours poring over textbooks, memorizing vocabulary and doing extra exercises. He felt defeated and wondered if he was just not good enough. Doubt ate away at his confidence, making him question his abilities.
As he walked home, his steps were slow and heavy. He couldn't help but think about what had gone wrong. He replayed the moments leading up to the test, trying to figure out where he had made mistakes. Maybe he hadn't studied the right way Or perhaps he had been too nervous during the exam These questions kept hovering in his mind.
When he got home, Tom decided to talk to his elder brother, Jack. Jack was always wise and had a way of making things seem better. Tom poured out his heart, telling Jack about his failure and how discouraged he felt, his voice tinged with sadness.
Jack listened patiently, nodding from time to time. The he said, “Tom, failure is not the end. It's an opportunity to learn and grow. Every great success story is filled with failures along the way. Figure out what you need to do differently next time. Analyze your mistakes and use them as stepping stones to improve.” Jack then pulled out his own test papers with bad grades years ago, sharing his own experiences of failure in school, which gave Tome hope and a new perspective.
注意：
(1)续写词数应为150个左右；


2、拉萨市2025-2026学年上学期高三第一次联考数学答案


4、拉萨市2025-2026学年上学期高三第一次联考数学答案


5、拉萨市2025-2026学年上学期高三第一次联考数学答案


4、拉萨市2025-2026学年上学期高三第一次联考数学答案


3、拉萨市2025-2026学年上学期高三第一次联考数学试题


2、拉萨市2025-2026学年上学期高三第一次联考数学答案


二、化石燃料的利用(32分)
化石然料是矿物资源的重要组成部分，主要包括煤炭、石油和天然气三大类，煤炭的主
要成分是贱，它推动蓝洗机的广泛应用，莫定了现代工业文明的基础。
9蒸汽机利用水蒸气推动活塞或祸轮做功.水从液态变为气态，发生改变的是
A水分子的质量
B.水分子的种类
C水分子的大小


A.原子发射光谱法
B.红外光谱法
C.X射线衍射
(2)工艺1：研磨引发的固相反应为CaP2+2NaOH一Ca(OH田2+2NaF，分析沉淀的成分，测得反应的转化率为
80%。水浸分高，NaF的产率仅为8%。
工艺I:水浸后NF的产率可达80%左右，写出工艺Ⅱ的总化学反应方程式
“水浸”后溶液中主要的金属阳离子是


3、拉萨市2025-2026学年上学期高三第一次联考数学答案