CIE IGCSE Biology: 复习笔记：13.1.1 Excretion in Humans
CIE IGCSE Biology: 复习笔记：13.1.1 Excretion in Humans Excretion of Carbon Dioxide & Urea Unlike plants, humans have organs which are specialised for the removal of certain excre...
CIE IGCSE Biology: 复习笔记：12.1.3 Anaerobic Respiration
CIE IGCSE Biology: 复习笔记：12.1.3 Anaerobic Respiration Anaerobic Respiration - Respiration Without Oxygen Anaerobic respiration does not require oxygen and is defined as the chemic...
2023AMC8报名进行中，AMC8竞赛怎么准备？
AMC8是美国初中数学思维活动，针对八年级及以下学生的数学测试，部分优秀的小学三至六年级学生也可以参加此活动。该活动开始于1985年，AMC8学术活动时间是每年1月中旬举行。 主要考察学生两方面的能力：相对扎实...
CIE IGCSE Biology: 复习笔记：12.1.2 Aerobic Respiration
CIE IGCSE Biology: 复习笔记：12.1.2 Aerobic Respiration Respiration is a Chemical Reaction Aerobic respiration requires oxygen and is defined as the chemical reactions in cells that use oxyg...
CIE IGCSE Biology: 复习笔记：12.1.1 Respiration in Cells
CIE IGCSE Biology: 复习笔记：12.1.1 Respiration in Cells Uses of Energy in Living Organisms Respiration is a chemical process that involves the breakdown of nutrient molecules (specif...
CIE IGCSE Biology: 复习笔记：11.1.11 Protecting the Breathing System: Extended
CIE IGCSE Biology: 复习笔记：11.1.11 Protecting the Breathing System: Extended Protecting the Breathing System: Extended The passages down to the lungs are lined with ciliated epithelial cel...
CIE IGCSE Biology: 复习笔记：11.1.10 Explaining the Link Between Physical Activity & Breathing: Extended
CIE IGCSE Biology: 复习笔记：11.1.10 Explaining the Link Between Physical Activity & Breathing: Extended Explaining the Link Between Physical Activity & Breathing: Extended Frequency and de...
CIE IGCSE Biology: 复习笔记：11.1.9 Differences in Inspired & Expired Air: Extended
CIE IGCSE Biology: 复习笔记：11.1.9 Differences in Inspired & Expired Air: Extended Differences in Inspired & Expired Air: Extended Reason for Differences Between Inspired & Expired Air...
2023年AMC8考试倒计时，AMC8到底有多难？（附真题解析）
AMC全称American Mathematical Competition即美国数学学术活动，等级划分为AMC8、AMC10、AMC12、AIME、USA(J)MO等，全球每年参加比赛的学生高达60万人次。学术活动针对不同年龄段的学生分为三类： AMC 8（针对8年...
CIE IGCSE Biology: 复习笔记：11.1.8 Volume & Pressure Changes in the Lungs: Extended
CIE IGCSE Biology: 复习笔记：11.1.8 Volume & Pressure Changes in the Lungs: Extended Volume & Pressure Changes in the Lungs: Extended The diaphragm is a thin sheet of muscle that separates ...
CIE IGCSE Biology: 复习笔记：11.1.7 Function of Cartilage in the Trachea: Extended
CIE IGCSE Biology: 复习笔记：11.1.7 Function of Cartilage in the Trachea: Extended Function of Cartilage in the Trachea: Extended Rings of cartilage surround the trachea (and bronchi) The function ...
CIE IGCSE Biology: 复习笔记：11.1.4 Differences in Inspired & Expired Air
CIE IGCSE Biology: 复习笔记：11.1.4 Differences in Inspired & Expired Air Differences in Inspired & Expired Air Air that is breathed in and air that is breathed out has different amounts of...
