美国TOP15文理学院公布秋季新生数据！
对于美国TOP30综合大学逐渐走低的录取率，学生和家长都“望而却步”，将目光转向了TOP20文理学院。 看一看部分已公布“Class Of 2026”新生入学情况的文理学院数据，你还“卷”得动吗？ 鲍登学院 2023 U.S. News 文理学...
2022高含金量美国文学艺术大赛Scholastic Art & Writing Awards已开启！
拥有100年历史、风靡全球的 高含金量美国文学艺术大赛 受到藤校、著名艺术学院的广泛认可 Scholastic Art & Writing Awards 学乐艺术与写作奖 比赛难度性：★★★★★ 比赛影响力：★★★★★ 比赛权威性：★★★★★ 带你...
火爆全球的2022HiMCM美国高中数学建模比赛已开启，组队报名的小伙伴看过来！
拿到AIME入场券后申请就万事大吉了？ 虽然AMC系列赛事有非常高的含金量 但仅靠这项背景履历 就想“躺平”从全球数以万计的学霸中脱颖而出？ 同样是晋级AIME的TA们可没有安于现状 快来看看拿到康奈尔/宾大全奖offer...
2023QS世界雇主声誉度排名发布！
选校，想必是最让准留学生们纠结的问题了。不过大家最关注的，就要数英国大学的综合排名和专业排名了。2023QS世界雇主声誉度排名已发布！在被广泛使用的QS排名里，“雇主声誉”是最富有特色的一项指标。 众所周知，...
Edexcel A Level Chemistry:复习笔记7.3.4 Acyl Chlorides & Esters
Hydrolysis of Esters Hydrolysis of Esters - Acid The reverse of the esterification reaction is called hydrolysis Ester hydrolysis is a useful reaction for creating biodegradable plastics Est...
Edexcel A Level Chemistry:复习笔记7.3.3 Reactions of Carboxylic Acids
Reactions of Carboxylic Acids In aqueous solution they are only slightly ionised, to give low concentrations of hydronium ions and alkanoate ions (often called carboxylate ions) This partial...
Edexcel A Level Chemistry:复习笔记7.3.2 Preparation of Carboxylic Acids
Preparation of Carboxylic Acids Carboxylic acids are compounds with a -COOH functional group They can be prepared by a series of different reactions Oxidation of primary alcohols & aldeh...
Edexcel A Level Chemistry:复习笔记7.3.1 Physical Properties of Carboxylic Acids
Physical Properties of Carboxylic Acids Carboxylic acids Carboxylic acid is the name given to the family of compounds that contain the carboxyl functional group, -COOH The general formula of...
Edexcel A Level Chemistry:复习笔记7.2.2 Testing for Carbonyls
Reactions of Carbonyls Carbonyl compounds can undergo a number of reactions, some of which allow you to distinguish between an aldehyde and a ketone Oxidation - with acidified potassium dich...
Edexcel A Level Chemistry:复习笔记7.2.1 Carbonyl Compounds
Aldehydes & Ketones Aldehydes and ketones contain the carbonyl functional group, C=O This is why aldehydes and ketones are also known as carbonyls The difference between aldehydes and ke...
Edexcel A Level Chemistry:复习笔记7.1.1 Chirality
Optical isomers A carbon atom that has four different atoms or groups of atoms attached to it is called a chiral carbon or chiral centre Chira comes from a Greek word meaning hand, so we talk about...
2023年AP考试报名已开启，AP文科各科目难度系数和五分率盘点！
9月19日，美国大学理事会College Board 宣布大陆2023年AP考试报名正式开启。在2022-23学年，大学理事会继续与Prometric合作管理国内的AP考试报名和考务工作。很多家长和学员询问应该报考什么科目？什么科目好学好...
