最难AP科目大盘点!
不同AP科目之间的难度差异可不小,“地狱级难度”的AP科目是哪些呢?它们究竟难在哪里呢?就让我们一起看看吧! 在38门科目中,AP生物、AP英语文...
不同AP科目之间的难度差异可不小,“地狱级难度”的AP科目是哪些呢?它们究竟难在哪里呢?就让我们一起看看吧! 在38门科目中,AP生物、AP英语文...
Invariant Points What is an invariant point? When applying transformations to a shape or collection of points, there may be some points that stay in their original position; these are known as inva...
2D Transformations What is meant by a 2D geometric transformation? The following transformations can be represented (in 2D) using multiplication of a 2x2 matrix rotations (about the origin) reflect...
Transformations using a Matrix What is a transformation matrix? A transformation matrix is used to determine the coordinates of an image from the transformation of an object reflections, rotations,...
Edexcel IGCSE Biology: Double Science 复习笔记 2.8.6 The Heart Structure & Function of the Heart The heart organ is a double pump Oxygenated blood from the lungs enters the left side of ...
Edexcel IGCSE Biology: Double Science 复习笔记 2.8.5 Human Transport Systems: White Blood Cells & Immunity White Blood Cells White blood cells are part of the body’s immune system These ...
Edexcel IGCSE Biology: Double Science 复习笔记 2.8.4 Human Transport Systems: Red Blood Cells & Plasma Red Blood Cells Red blood cells are specialised cells which carry oxygen to respiri...
Edexcel IGCSE Biology: Double Science 复习笔记 2.8.3 Human Transport Systems: Blood Components of the Blood: An Overview Blood consists of red blood cells, white blood cells, platelets and p...
Edexcel IGCSE Biology: Double Science 复习笔记 2.8.2 Transport Systems in Flowering Plants Xylem The roots, stem and leaves form a plant organ system for the transport of substances around t...
Edexcel IGCSE Biology: Double Science 复习笔记 2.8.1 The Requirement for Transport Systems Unicellular Organisms In order for any organism to function properly, it needs to exchange substanc...
Edexcel IGCSE Biology: Double Science 复习笔记 2.7.3 Practical: The Effect of Exercise on Breathing Practical: The Effect of Exercise on Breathing Exercise causes the frequency of breathing ...
Edexcel IGCSE Biology: Double Science 复习笔记 2.7.2 Smoking & the Human Gas Exchange System Smoking & the Gas Exchange System Smoking causes chronic obstructive lung disease (COPD),...
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