衡水金卷先享题 2021-2022专项提分卷(语文) 小组合专项突破练(8)答案

衡水金卷先享题 2021-2022专项提分卷(语文) 小组合专项突破练(8)答案，目前我们趣对答案已经整理了衡水金卷先享题 2021-2022专项提分卷(语文) 小组合专项突破练(8)答案的各科答案和试卷，更多试卷答案请关注本趣对答案。

【参考范文】Dear Michaem writing to tell you about the classical Chinese poetry festival to be held in our school at this weekendme famous poets as well as how to read and write classical Chinese poems, and poetry readings, which willhelp you to develop an appreciation of classical Chinese poetry. Besides, there is a poetry writing contest, andwhoever is interestedoem writing can take partSo why not come to the festival? I'm sure you will learn a lot as a lover of classical Chinese poetry.Looking forward to your replyLi Hua

34.【物理-选修3-4】(15分)(1)(5分)答案:沿y轴负方向(2分):1m/s(1分)2152分)(2)(10分)解析:解析:(2)①光路图如图所示设∠BCo=B,折射角为i对△OBC,由正弦公式得sin B=又n3分联立解得snsn=,所以i=60°故出射光线偏离原方向的角度为i-B=30②由光路图可知交点在D点,由几何关系可得∠OCQ=∠DCQ=60OD=20Q=2Rcos30°=R…4分