2023-10-26 17:40:42

二、综合题（共45分)31.如下图是运动员在比赛前后体内由下丘脑参与的生命活动调节的部分过程。请据图回答：信号刺激业W激素a激素胰岛←o一下丘脑激素d靶细胞垂腺...

2023-11-04 19:27:02

HCOOCHHCOOCHCOOH-CH-(6)〉-CH2OHPCCCH-COOHCHOHO/催化剂DCMTEA,Ac2OCOOHCH-催化剂CHO门H(或其他合理答案，4分)OH△【解析】本题主要考查有机化学基础，考查学生...

2023-11-04 22:44:54

位质的复质有CH.NH0CH.CH,COH,n10.【答)4d505p1分)分子中】个氢题子意东环取代，符台条件的同(2)-250(2分)分异病体有(3+2)×4-1=19（种）。(4)L包(3)①0.5(2分)②C1...

2023-11-07 15:14:31

《Units1~3重点知识复习与巩固》参考答案重点句型检索：高频词汇检索：1.-What time do you usually take online classes?1.many apple trees2.speaks English-A...

2023-11-08 00:20:28

郑州市2022年高中毕业年级第二次质量预测英语参考答案一、选择题(1-60)：1.A2.C3.B4.C5.A6.B7.A8.B9.B10.C11.A12.C13.B14.B15.C16.B17.B18.A19.C20.C21.B22.C23....

2023-11-09 07:25:30

第3课时有关化学式的计算三要点回放等1.相对分子质量：化学式中各原子的(3)Al(OH)3中铝元素、氧元素和氢元素的质的总和。符号为M。量比2.根据化学式的计算：(1)...

2023-11-09 07:56:40

A.Make your preferences known from the start.B.Instead,it means coming to a mutual agreement.C.Handle such conflicts with open communication.D.It refe...

2023-11-09 16:03:04

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2023-11-11 21:04:37

4.What do the first two paragraphs mainly tell us?A.Asian elephants are becgring eytinct.B.Zoos allow people to bond with wild animals.C.Zoos are the...

2023-11-12 05:38:15

学生用书名师导学·选择性考试第一轮总复习·化学知识点二常见化学电源及工作原理子，发生还原反应：zFePO4十xLi计十xe-一rLiFeO4,C正确；璘酸铁锂锂离子电池充放...

2023-11-13 00:16:43

三、语篇理解。·11-13ABC听力材料Dear listeners,11.Where did Abby travel?Welcome to our monthly program X-A.Around Europe.B.Around Asia.Culture.It's eig...

2023-11-13 16:51:08

第八单元金属和金属材料反应程度滤液成分滤渣成分A.滤液一定呈蓝色①AgNO,与部分B.滤液中一定含有A13Zn反应C.滤渣中一定含有Cu②AgNO3与Zn恰D.滤渣中可能含有Ag好...

2023-11-13 17:57:31

第十单元酸和碱课题2酸和碱的中和反应课时1中和反应及其在实际中的应用267考建议用时：20分钟教材改编题实验操作实验现象实验结论①向盛有5mL稀》基础氢氧化钠溶...

2023-11-14 12:30:51

Ⅲ.1.really cool2.an art festival;on3.How much is;trousers4.Why don't;like5.Come;buy clothesIV.1-5 CFEDA阅读理解1-5 ACDDC6-10 BCCBC11-15 CCBDC16-20 FAB...

2023-11-15 00:38:47

高考快递“模拟汇编48套·英语长难句分析Android users who have enabled location services37.G【解析】根据本段的小标题“Take breaks outside”可知，本and are n...

2023-11-15 07:26:57

48.A.pull inB.get in第二节（共10小题：每小题1.5分，满分15分1C.participate inD.jump in阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。49...

2023-11-16 01:34:42

频度副词Ⅱ.根据中文提示，用always、usually或never2完成情景练习英语句子。Section A Grammar根据句意，从方框中选择适当的频度副词填空，Focus-3c每词限用一次...

2023-11-16 07:49:10

强化四物质结构与元素周期表1.下列有关粒子性质的排列顺序中，错误的是分析判断下列说法正确的是(A.D、H、J的氧化物分别为酸性氧化物、两性氧A.元素的电负性：P<...

2023-11-17 12:25:31

少MnS,O。的生成，“浸锰的适宜温度是百100分率8代表温度对锰浸出率的影响0600000●代表浸锰温度与MnS2O6生成率的关系10●●0153045607590105120135温度/℃(6加入NH,H...

2023-11-17 16:49:18

开始沉淀6.31.53.46.57.4沉淀完全8.32.84.78.59.4(1)“粉碎的目的是(2)“酸浸时通入过量空气的作用是(用离子方程式表示)。(3)常温下，K[Zn(0H),]=(4)调pH的范围是...

2023-11-18 01:10:52

多余选项。How to Work Out Your Worries by WritingSomething troubling you?You should write about it!Research indicates that people whowrite about a dif...

2023-11-18 21:55:23

.completely helpless.They need to live with the help of their mothers.Once a baby panda leavesits mother,it will live all alone.bPandas are active dur...

2023-11-20 14:27:03

when wethink ofoaehofBcity.Sam Chee works on a very different type of farm,in the center of the Canadian city otToronto."We grow fruit,vegetables and...

2023-11-20 18:59:30

22.Which contest can John enter if he has a 5,500-Dword article?32.What does the first paragraph mainly tell us aboutA.2023 Bristol Short Story Prize....

2023-11-21 16:31:24

Then Fahad asked,"Why are you giving it back?""Because I was told by my family that honesty won't let you down.Asadexplained.Fahad avoided Asad's shin...

2023-11-22 22:45:25

A8.根据下列实验操作和现象所得到的结论延确A.溶液I中c(OH)=c(H*)+c(NH)选项实验操作和现象结论B.溶液I和Ⅱ中的c(NH,·H,O)不相等X15℃时，将2粒大小相同的金属钠分...

2023-11-23 11:57:00

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2023-11-23 21:03:14

③在800K时，向平衡后的容器内再充入1 mol H.O和1 moI CO2,侧化学反应的o(正)总压×物质的量分数)。(填“>”“<”或“=”)u(逆)。3)工业上常用氨水吸收含碳燃料燃烧时产...

2023-11-24 11:31:06

驰全国©0所名校高模拟金典卷(3)制Mn(PO)2。由萃取后所得水层中的Mn2+、H,PO,制纯净的M(PO,)2固体。实验方案：取萃取后所得水100层溶液100mL[其中c(Mn2+)=1.2mol·...

2023-11-30 01:53:37

化学·参考答案及解析非选择题生成的11.(25分)得到mol Al(OH)时.理论上消耗NaOH、HCI的中含有(1)3263物质的量均为nmol,大于前一流程的消耗量，相对而言，前流程更...