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EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.1 Solubility Rules Solubility Rules Ionic compounds are generally soluble in water compared to covalent substances, but there are except...
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Homeostasis: An Overview In order to function properly and efficiently organisms have different control systems that ensure their internal conditions are kept relatively constant Physiological cont...
华南师范大学附属中学国际部（简称HFI），近日，华附国际部官网发布最新招生简章！AP课程2023年开始扩招了！在简章中提及，从今年起开始招收4年制学生。 具体招生信息如下： 1.招生对象及名额 2.入学考试科目及时...
北京时间2022年10月19日，大学理事会正式开放SAT机考的国际报名，全新SAT机考的备考资源也已上线。从2023年开始，美国以外的所有SAT考试都将转为机考，美国SAT考试将在2024年全面转为机考。 2022年1月，大学理事...
USACO学术活动是美国最具认可度的计算机学术活动，用于选拔美国参加全球信息奥林匹克学术活动（IOI）的国家队，全球的参赛者都可以通过参加网上的三场学术活动，晋级铜奖、银奖、金奖和白金奖四个等级，相关奖项...
