②原电池反应中，负极失电子，电极c为负极，CH失电子，故气体a为CH，气体b为O2，电极c的电极反应式为CH一8e+2H2O-一CO2十8H+。【评分细则】（1）①第二空填“
1、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治试题1、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案1、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案
1、河南省2024-2025学年第一学期九年级教学质量检测二物理试题1、河南省2024-2025学年第一学期七年级学情分析二数学答案1、河北省2024-2025学年第一学期九年级学业水检测一数学答案1、河北2、吉林省2024-2025学年度第一学期阶段练九年级数学试题1、河北省秦皇岛市某校2024-2025学年第一学期期中演练九年级政治试题1、河北省2024-2025学年第一学期阶段性学业检测一（九年级）历史试题
1、江西省2025届九年级训练（二）期中数学（北师大）试题1、河北省2024-2025学年第一学期八年级学业水检测一历史试题1、河北省2024-2025学年第一学期阶段性学业检测一（九年级）语文答案
1、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案1、安徽省芜湖市2024-2025学年度第一学期九年级素质教育评估试卷政治答案1、2023-2024学年度第二学期芜湖市义务教育教学质量监控八年级试题卷答案(语文)
18.观察下列等式：小2解答下列问题：（2）用含n（n为正整数）的等式表示上面各个等式的规律，并加以证明（本大题共2小题，每小题10分，满分20分）项目式学中庙又名忠庙、太姥庙，位于安徽巢湖市的中庙镇，古时因“中庙”居巢州、庐州的中间，所得地名，也就有了“中庙寺”的寺名，如图1所示。某学校数项目背景学兴趣小组在详细研究了中庙的结构设计后，想用所学知识测量这座庙的高度，其示意图如图2所示，为了更好地测量中庙的高度，小组需完成两个任务。如图2所示，在垂直地面的这座庙PO侧方有一台广场，小明在台广场A处测得庙顶端P的仰角为53°，AP=88m，走上侧边阶梯BC，阶梯BC的坡度i=1:2，阶梯BC的坡面长度为30m.P图示及说明图1图2任务1求阶梯BC的垂直高度，即点C到直线AB的距离；（结果保留整数）任务2求这座庙PO的高度.（结果保留整数）参考数据安徽省C20教育联盟2025年九年级学业水测试“最后一卷”数学第4页共6页
2.8+2x2.8-2xCD0.9+2x30.9-2x3+1(x≠y)，例如：（-2)*3=(-2)5.规定*运算为：x*y：-1，则当a*b+b*a=1且x-y-2-3-5a≠b时，a+b的值为（A.0B.1C.2D.36.如图，一次函数y=kx+b(k>0)的图像与反比例函数y2=xA的横坐标为1，点B的横坐标为-2，当y
《双语学报》2024-2025学年八年级X版·Z专版第39期八年级（下）Units6-7综合能力训练听力原文及参考答案听力原文第一节听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。1. W: William, are you playing computer games in your room?2. W: My favorite animal is the elephant. What animals do you and your sister like best?M: I like the panda best. My sister Susan likes the monkey best.3. M: Elena, I heard last Friday was your brother's birthday. What did you give him?W: He loves mountain climbing, so I bought a pair of sports shoes for him.4. W: Eric, I hear you will visit your grandfather this Sunday. How is he?M: He has a serious illness and the doctors are trying their best to save him.5. M: Chengdu is a popular city with much delicious food. How about flying there next week?W: Sounds like a good idea. We can also see the pandas.第二节听下面3段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你有时间阅读各小题，每小题5秒钟。听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听下面一段对话，回答第6至第7两个小题。M: Annie, can you go to the movies with me this evening?W: Sorry, Max. I have to go to the storytelling club.M: When did you join the club?W: Last month. In the club, I can listen to many interesting stories and make new friends.M: Do you go to the club every Wednesday?W: Yes, but not only on Wednesday. Every Friday we have a meeting and every member must goto the meeting.M: Oh, I see.听下面一段对话，回答第8至第10三个小题。W: Look at the sky, Tom. There are so many black clouds. I'm afraid it's going to rain soon.M: Yes. The weather report says it will be rainy this afternoon. But it says it will be sunnytomorrow. Shall we go to the countryside tomorrow, Helen?W: Well, I don't want to go to the countryside. How about going to the water park?M: Oh, I went there last Sunday with my family. Do you have any other good ideas?W: Let me think. Why not go to the library? I want to borrow a book.M: That sounds like a good idea. What book do you want to borrow?W: Journey to the West.M: It's a famous Chinese bookW: Yes. I watched a TV program about it two years ago. It's so exciting that I want to read thebook.M: I also want to read it because I'm interested in Chinese culture.听下面一段独白，回答第11至第15五个小题。
第二节听下面几段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳答案。每段对话或独白读两遍。听下面一段对话，回答第6至第7两个小题。W: What do you want to be when you grow up, Su Hua?M: I want to be a musician. You know, my aunt is a musician. She is very cool.W: Oh, I know that you are good at playing the violin.M: You are right. Also, I'm going to learn how to play the drums.听下面一段对话，回答第8至第9两个小题。M: What is your New Year's resolution, Helen?W: Taking up a new hobby. I'm going to join the school ping-pong club.M: Why are you going to choose the ping-pong club?W: I can't play ping-pong. I just want to learn a new skill听下面一段独白，回答第10至第12三个小题。because I'm good with numbers. When I grow up, I want to design bridges. I'm going to workreally hard at science and maths.Ihave a sister.Her name is Kate.She is three years older thanme. She is serious and has a'good memory. She is studying law at university and she wants to bea lawyerin thefuture.听下面一段对话，回答第13 至第15三个小题。W: What is your dream job, Tom?M: Designing shoes for people.W: Oh, you want to be a designer.What about your twin brother Clark?M: He is stronger than me, and he wants to be an athlete.W: Oh, is he good at doing sport?第三节听短文，根据所听到的短文内容，完成下面表格，每空填一词。短文读两遍。Hi, I'm Liu Shan. I go to Sunshine Middle School. I'm in Class 3, Grade 9. I'm in the school art club.We meet on Monday afternoons. I like painting. It makes me happy. I want to be a painter in thefuture, just like my grandmother. To be a painter, I am going to paint in the park at weekends. Ialso plan to visit art exhibitions during the holidays. My best friend Chen Xi is my classmate. Sheis in the drama club. She is slim and confident. She wants to be an actress in the future. To be an
