2026届海淀八模答案网

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3二1，即谜题没被破解的慨率为P(BA )+P(BA:)+P(BA,)=P(AB)53P(BA)=故选A.31313P(A)23.C由题意知P(AB)=P(B|A)P(A)=0+×5+×2=0,知P(B×号-品选CA1)≠P(B),事件A1与事...

参考答案所以三棱台的体积为号×(+5+√×)×1因为点P为底面四边形ABCD内（包括边界）的一动点，直线D1P与平面BEF无公共点，s?3所以P的轨迹为线段AG,则|AG|=√2十1严=√...

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此时f(x)=cos(2x-…5分3(2)由函数fx)的图象沿x轴向左平移兀个单位，得到30Ef0X十元Ec0S0r…30由(1)知f(x)=cOs(Or-),作出两个函数图象，如图：3o(oyA,B,C为连续三交...

大一轮复习学案数学所以1G1=4005N,当9=2km+T（keZ）时，代9)取得最大411.1+√3解析因为3+i则该学生的体重为405kg,约为69kg1-√3i故选B.值，为22-4.(5+i)(1+3i)=√3+...

第6期参考答案相似形(22.3~22.5)同步诊断一、选择题（每小题4分，共32分）22.3相似三角形的性质1.B2.B3.C4.C5.B6.D7.D8.A课堂探究：例1(1二填空题（每小题5分，...

答案：2：1.15.解析：考虑方程3-1=1，由f(x)=3-1的图象得：当1<0时，方程3-1=1无解；当1=0或1≥1时，方程3-1=1一解：当0<t<1或t≥1时，方程3-1=t两解.故方程g(f(x)...

23:029lHD35/5可知选D。65.C细节理解题。根据第二段“Also,we may be able to bring the dead back to life..”与第三段“.…sowe will appear to be alive long aft...

Cost:Adult,￡22.90；child,￡16.60.24Blair Drummond Safari Park,StirlingBlair Drummond Safari Park opened to the publie in 1970 and is home to over 350...

第二节（满分25分）阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。It was a beautiful day for sightseeing.We were a group of...

cles and learned lessons from them that helped push me forward. I hope others can take inspiration from my story and realize that-despite the challeng...

C.By role-playing the show. 11.What happened to the girl after her performance? A.She moved to London. B.She became less shy. C.She took over an agenc...

B I started to work as an editor for a travel magazine.I didn't really mind the work,but I wanted something more challenging. My sister sent me some d...

一个问题。 15.C推断题。本文主要内容：研究人员在北极发现塑料颗粒。 因此本文属于科学范畴。

devices than we imagine.These days,people can spend the ma- jority of their days on social media and electronic devices.These all-in-one devices are g...

15.Which of the following has the man already been to? A.England. B.Egypt. C.Canada. 16.How will the woman help the man? A.By finding where the visa o...

nent exhibitions and Prehistoric Playground,which is open daily on Level 2 and features a variety of activities for children of all a- ges including a...

32.What is the ultimate aim of the release of genetically modified mosquitoes? A.To maintain the local ecological balance. B.To remove natural mosquit...

第二节书面表达（满分25分） 假定你是新华高级中学学生李华，你在网上得知澳大利亚籍 中学生David想来中国沿古代丝绸之路游览，他向网友征集驴友 兼向导。请给Da...

第二节（共5小题；每小题5分，满分25分） 阅读下面短文，从短文后的选项中选出可以填入空白处的最 佳选项。选项中有两项为多余选项。 Pets are a great way to a...

W:I thought about going to visit my aunt in New York.How a- bout you? M:I'll probably just stay at home since it is not warm those days. (Text 3) W:If...

【答案与解析】 本文介绍了秘鲁一次8.0级大地震的有关情况以及该国频繁 发生地震的原因。 11.A根据第2段第1句和第4段第1句可知，这次地震目前仅 造成一人死亡。...

试题答案 1~5 BBCAC 6~10 ACACC 11~15 BACAB 16~20 CBBCA

Scientists have proved the idea wrong that women are under- represented in the science,technology,engineering,and mathe- matics STEM)industries becaus...

Notice The Student Union October 1