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5、[天舟益考衡中同卷]2025年模拟押题卷(一)1·数学B试题


3、[天舟益考衡中同卷]2025年模拟押题卷(一)1·生物B试题


C．The writer feels bored with the waterfall. D．The writer doesn’t check the weather for the trip.
C
January 20, 2025, a Chinese tech company named DeepSeek made a new AI called DeepSeek-R1. This smart program can solve math problems, write code (代码), and answer questions like top models such as OpenAI’s GPT-4o, but it costs much less to build. The team spent only $5.58 million (1/70 of OpenAI’s cost) and used 2,048 computer chips (芯片) for two months to make it. This shows that good ideas can beat big money.
DeepSeek-R1 learns by trying many times and getting better, like how students practice maths. Other AIs need lots of prepared examples, but R1 improves by itself. In a global math test, it got 79.8% right, a little higher than OpenAI’s model. A simple version (版本) of R1 can even run on low-cost computers, helping schools and small companies.
DeepSeek-R1 is free to use and change. On its first day online, over 19,000 programmers worldwide started projects to study it. A German scientist said experiments with R1 cost $10 instead of $300 with other AIs. Even Meta (a famous U.S. tech company) top scientist said, “This kind of free AI could change the world.”
U.S. tech companies are worried. Meta planed to spend $65 billion more on AI research. Experts said China was catching up fast. A report in Nature magazine called R1 a “big step forward”, confirming that smart ideas beat expensive tools.
As a DeepSeek engineer said, “We want AI to be a friend, not something only rich people can use.” With R1, China shows the world that great things come from new ideas and hard work, not just money.


C. has strong local colours D. has strong local colour
【答案】B
【解析】略
72.(2025·江苏省·同步练习)These ________ dresses are very beautiful, but the price（价格）is a little ________.
A. purple cotton; high B. purple cotton; expensive
C. cotton purple; high D. cotton purple; expensive
【答案】A


6、[天舟益考衡中同卷]2025年模拟押题卷(一)1·数学B试题


1、[天舟益考衡中同卷]2025年模拟押题卷(一)1·生物B试题


2、[天舟益考衡中同卷]2025年模拟押题卷(一)1·英语B试题


6、[天舟益考衡中同卷]2025年模拟押题卷(一)1·化学B试题


5、[天舟益考衡中同卷]2025年模拟押题卷(一)1·生物B试题


6、[天舟益考衡中同卷]2025年模拟押题卷(一)1· B试题


1 mol该物质和足量的金属钠反应,产生22.4 L的氢气
该物质能使溴水及酸性KMnO4溶液褪色
13.由乙烯和乙醇蒸气组成的混合气体中,若碳元素的质量分数为60%,则氧元素的质量分数为 (　　)
15.6% 26.7%
30% 无法确定
14.(8分)经测定乙醇的分子式是C2H6O,由于有机化合物普遍存在同分异构现象,推测乙醇分子的结构可能是下列两种之一:
Ⅰ .　Ⅱ .


（2）铝被广泛地应用，除了因为改进铝的冶炼方法使其成本降低，以及铝的密度小外，还由于铝的抗腐蚀性能好。
（3）某兴趣小组为探究Fe、Cu、R的金属活动性顺序，展开了一系列探究。
【提出问题】
如何判断Fe、Cu、R的金属活动性顺序？
【猜想与假设】
猜想一：Fe＞Cu＞R；猜想二：Fe＞R＞Cu；猜想三：R>Fe>Cu。
【进行实验】


3、[天舟益考衡中同卷]2025年模拟押题卷(一)1·化学B答案