Controlling the "Greenhouse" Effect
The Progress in the Theory of Hard-Soft Acids and Bases
The Reform of the Method for Unit Review
Discussion on the answeres for Two Test Questions
A Brief Introduction to the Orthogonal Design Test Method
Training Abilityand Teaching Knowledge Simultaneously Reach the Point
Improvement of the Demonstration for the Reaction of Iodine with Zine Powder
An Absorber for Poisonous Gaseous Residue
The Preparations of the Lead Compounds
The Mechanism of Reaction of Magnesium with Ammonium Chloride Agueous Solution
Tollen's Test,Fulminating Silver and Fulminate of Silver
The Problems for the ⅩⅩⅠ International Chemistry Olympiads
The Sources of Energy、Environment and Chemical Teaching——A Brief Introduction to an International Meeting