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...
CIE IGCSE Biology: 复习笔记：11.1.6 Identifying Intercostal Muscles: Extended
CIE IGCSE Biology: 复习笔记：11.1.6 Identifying Intercostal Muscles: Extended Identifying Intercostal Muscles: Extended Muscles are only able to pull on bones, not push on them This means that ther...
CIE IGCSE Biology: 复习笔记：11.1.5 Investigating the Effects of Physical Activity on Breathing
CIE IGCSE Biology: 复习笔记：11.1.5 Investigating the Effects of Physical Activity on Breathing Investigating the Effects of Physical Activity on Breathing Exercise increases the frequency and dept...
CIE IGCSE Biology: 复习笔记：11.1.3 Investigating the Differences in Inspired & Expired Air
CIE IGCSE Biology: 复习笔记：11.1.3 Investigating the Differences in Inspired & Expired Air Investigating the Differences in Inspired & Expired Air A simple experimental setup can be used t...
CIE IGCSE Biology: 复习笔记：11.1.2 The Breathing System
CIE IGCSE Biology: 复习笔记：11.1.2 The Breathing System The Breathing System Structures in the human breathing system 转载自savemyexams
CIE IGCSE Biology: 复习笔记：11.1.1 Features of Gas Exchange Surfaces
CIE IGCSE Biology: 复习笔记：11.1.1 Features of Gas Exchange Surfaces Features of Gas Exchange Surfaces The surfaces where gas exchange occurs in an organism are very different and different organi...
CIE IGCSE Biology: 复习笔记：10.1.8 Cholera
CIE IGCSE Biology: 复习笔记：10.1.8 Cholera Cholera Cholera causes diarrhoea Diarrhoea is the loss of watery faeces from the anus If it is severe and continues for a long time, it can lead to death...
CIE IGCSE Biology: 复习笔记：10.1.7 Passive Immunity & Breastfeeding
CIE IGCSE Biology: 复习笔记：10.1.7 Passive Immunity & Breastfeeding Passive Immunity & Breastfeeding Passive immunity is a fast-acting, short-term defence against a pathogen by antibodies ...
CIE IGCSE Biology: 复习笔记：10.1.6 Preventing the Spread of Disease: Extended
CIE IGCSE Biology: 复习笔记：10.1.6 Preventing the Spread of Disease: Extended Preventing the Spread of Disease: Extended If a large enough percentage of the population is vaccinated, it provides p...
