2023-09-13 18:17:13

cos C=-cos(A+B)=sin Asin B-cos Acos B=3 sin2A-v(1-sin2A)(1-3sin2A)>0,解得sinA日则gsnA写3…10分18.【解题分析】1)：当n≥2时，a,=S。一S1S。一S1=2S2S%.(S。-...

2023-10-02 19:31:44

1,答案D毫州市普通高中2021一2022学年第一学期高三年级期末质置检测会适新本超寺在华电拉于在赠妈中定动，青主青生的拉理能力尔立用数学处里物里问的他力：®路线...

2023-10-02 19:44:15

习全围1®0所名接单元测试示范老教学札记wheat softly blow in the wind,as well as tractors slowly working fields in preparation for cropplanting.At harves...

2023-11-01 08:00:41

20.解：(1)设A1为“从甲盒取出2个红球”；A2为“从甲盒取出2个白球”；A?为“从甲盒取出1个白球1个红球”；B为“从乙盒取出2个红球”.则事件A1,A2,A3两两互斥，且P(A1)十...

2023-11-03 10:48:48

参考答案8.160:x≥250(2)①基准点K的高度h为21m;(2)演员身体距离地面的最大高度第三单元函数e%品为4.75米；(3)起跳点A距离地面的高度为知识整合1平面直角坐(3)他的...

2023-11-03 10:53:04

足的商品：阿拉伯商人的积极推动：宋代政府对海外贸易的重视；依据所学知识推导出宋代航海技术进步，为海外贸易提供了技术支持。第二小问“看法”：根据材料一“宋...

2023-11-08 18:38:16

with their peersmakes me feel as though I am in some talent-based American high school movie.Every morning,we are welcomed withOutcomesthe beautiful v...

2023-11-12 21:48:38

12.What is the woman doing?eoviblaM,insl svono2A appointment.B.Holding an interview.C.Having a meeting.听第9段材料，回答第13至16题，13.What are the sp...

2023-11-13 21:54:39

stronger social bonds and have more social interactions than female chimps.Researchers found that wild chimpanzees share a similar patter."They intera...

2023-11-14 01:48:53

were indeed more kind people in the world.She said,"Thank you very much!"with a big smile,and hurried to heroffice with great expectation.She knew she...

2023-11-14 04:38:17

很多土地被闲置(idle)。31.C【解析】推理判断题。根据最后一段可知，Zook担心天气还会不如人意，这将会影响大豆的收成。32~35 CDBDD篇：本文是说明文。为了解决...

2023-11-18 06:38:52

Idressed my little girl in beautiful clothes and put a bow on her head,because she liked to be comfortable.Is society interested in comfort?However,wh...

2023-11-19 02:25:07

confideThat's英语三轮复习保分抢分系列卷（三）exciteAA Reading by the Whiting Award Winnersnovel is seDate:APRIL 7Time:6:30 PM EDT-7:30 PM EDTAsVenue:T...

2023-11-21 16:15:05

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2023-11-23 05:51:03

第8期参考答案painting.I'm in the art club.years.My old school was a small village school.It八、A)60.was61.of62.that63.As/WhenUnit4综合能力评估试题Q:Wh...

2023-11-23 07:55:17

eyes,turning her head from side to side.Then she flew quickly out of sight.During the cookout,I told my hosts about the hummingbird incident.They prom...

2023-11-23 12:35:00

Text 8W:We're having a meeting tomorrow.Can youmake it,David?M:Of course.When is it taking place?W:He must have lived a very busy life during hisW:We...

2023-11-23 13:45:22

39.D根据空后“Just work more movement into your day.”可知，D项“你不必参加马拉松比赛”符合。40.B根据空后“Simply said,we are better together..Steps to bui...

2023-11-24 00:31:20

4.He wonders how to organize a birthday party in a good order.5.You will never know the result without a try.6.She found a student ID card while walki...

2023-11-24 07:15:02

《双语学习报》2023一2024学年高考版·新教材广东专版第7期测试题参考答案及部分解析第7期测试题参考答案1-5 BDCDC6-10 DABAA11-15 DDADB16-20 ABCGE21-25 BDBAC2...

2023-11-30 17:56:59

【答案】 One possible version: Dear Mr Smith, I'm Li Hua,a student in a high school.I'm interested in the job you advertised on the Internet and I thi...

2023-12-03 08:44:54

There wasn't air conditioning so houses were often built where the breeze would 21 across the porch and there was a 22 that protected porch sitters fr...

2023-12-03 12:03:01

loads.Select "Book+E-Book"and you would also like to down- load a digital version of this book. E-Book (USD $15.39) '“Contents'”,“Getting Started”and“...

2023-12-03 12:47:17

(Text 3) M:Mrs Lane?Why has my seat been moved to the front row? Everyone else is sitting in their original seats. W:If you choose to talk in class in...

2023-12-03 22:47:20

听第7段材料，回答第8至10题。 8.What does the man advise the woman to do? A.Save up for the car. B.Go to another car dealer. C.Ask someone to check the...

2023-12-06 20:58:58

<p>1、炎德英才大联考(一中版)长沙市一中2024届高三月考试卷(二)2语文试题</p><br><p>次是在20世纪80年代。既然是重修，新楼和旧楼往往会有较大的差别，原因主要...

2023-12-15 14:35:22

<p>1、炎德英才大联考湖南师大附中2024届高三月考试卷(一)语文.</p><br><p>C.网络文学的发展，使得文学作品不再要刷：而文学平台不断的变换，导致文学的确立和存...

2024-01-02 14:15:12

<p>1、炎德英才大联考(一中版)长沙市一中2024届高三月考试卷(二)2语文试题</p><br><p>次是在20世纪80年代。既然是重修，新楼和旧楼往往会有较大的差别，原因主要...

2024-03-24 19:09:40

<p>1、炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案</p><br><p>-</p><br><p>2、炎德英才大联考·长沙市一中2024届高三月考试卷(二)2英语答案</p><b...

2024-03-24 19:12:21

<p>1、炎德英才大联考长沙市一中2024届高三月考试卷一数学卷解析答案</p><br><p>2021~2022学年度第二学期期末学业水平诊断高二数学注意事项：1.本试题满分150分...