S

Chemi​stry

CH16.1 The Concept of Equilibrium | CH16.2 The Law of Chemical Equilibrium | CH16.3 Le Chatelier's Principle

Mat​h

CH12.1 Geometric Representation of Vectors | CH12.2 Algebraic Representation of Vectors

​​​Ch​inese​

边城（节选）

Phy​sics

CH22.1Current and Circuits | CH22.2 Using Electric Energy | CH23.1 Simple Circuit | CH23.2 Applications of Circuits - Safety Devices

H​

Eng​lish

The Jungle | The Brave New World

​​Rheto​ric

CH9 Beginng and Ending the Speech | CH10 Outlining the Speech

​His​tory​

CH21 Life in The Industrial Age:1800-1914 | The Devil in the White City |

Hi​story II​ 

CH21 Life in The Industrial Age:1800-1914 | The Devil in the White City |

Chemistry

CH17 Reaction Rate