【福州市福九联盟】2024-2025学年高二上学期期中考试数学试题+答案

【福州市福九联盟】2024-2025学年高二上学期期中考试数学试题+答案,答案汇总网收集关于【福州市福九联盟】2024-2025学年高二上学期期中考试数学试题+答案的相关科目试卷及其答案，更多其他试卷答案请关注本网站！

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书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don' t take theresults so serously because taking part is more important than the result. Good luck to everyone!

周测卷十八

1.D【解析】本题考査引起神经元静息电位绝对值减小的原因。静息电位的产生与K←外流有关,若要使神经元静息电位绝对值减小,就是要让K←外流减少,可以采取的措施有降低细胞内K+浓度或升高细胞外K艹浓度,D项正确

2.C【解析】本题考查膜电位变化与兴奋的传递等。伸肌细胞膜的动作电位可通过局部电流的方式传导到肌纤维内部,A项不合理;静息膜电位的形成与K外流有关,故血液中K浓度急性降低,可兴奋细胞静息膜电位的绝对值增大,B项不合理;传出神经元在静息电位形成时膜对K艹的通透性增大,K艹外流,C项合理;兴奋在传入神经元上的传导过程中是以电信号形式进行的,是不衰减的,D项不合理

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