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1、学科网 2026届新高三学情摸底考政治(新课标卷)试题


5、学科网 2026届新高三学情摸底考化学(新课标卷)试题


But American football(美式橄榄球) is different. The ball is not round. It’s like an egg. Players can catch the ball with their hands or kick the ball with feet. There are about 53 players in a team. But only 11 players can play on the ground, too.
75．Soccer is round, but American football is like an egg. ( )
76．There are only 11 players in the American football team. ( )
77．You can use your hands to touch the American football. ( )
78．Everyone can use his hands to touch the soccer. ( )
79．The passage(文章) is about the basketball and American football. ( )
阅读短文，判断下列句子正(T)误(F)。


第一部分 阅读（共两节，满分50分）
第一节（共15小题；每小题2.5分，满分37.5分）
阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
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4、学科网 2026届新高三学情摸底考生物(新课标卷)试题


5、学科网 2026届新高三学情摸底考生物学(新课标卷)试题


4、学科网 2026届新高三学情摸底考数学(新课标卷)试题


1、学科网 2026届新高三学情摸底考 (新课标卷)试题


3、学科网 2026届新高三学情摸底考语文(新课标卷)试题


①和③对比，可以证明氧化铜能够加快过氧化氢的分解速率；
【小问 3 详解】
步骤⑦重复实验②③，是为了证明氧化铜的化学性质在反应前后没有改变，符合催化剂 “一变两不变”
（改变反应速率，反应前后质量和化学性质不变）的特点；
【小问 4 详解】
氧uuu化uuu铜ur
过氧化氢在氧化铜的催化作用下分解生成水和氧气，文字表达式为：过氧化氢 水+氧气；


（3）铁制品上镀铜，镀层金属作阳极，与电源正极相连；铁制品作阴极，与电源负极相连；


3、学科网 2026届新高三学情摸底考生物(新课标卷)答案