The research progress on Aspartame, its structure,production and characteristics are systematically summarized.
综述了阿斯帕甜甜味剂的研究进展，并对它的结构、产生、特性及应用作了系统的归纳，指出阿斯帕甜将成为保健食品、中西成药、美容化妆品等行业的理想甜味剂。
The racial prejudice and balance with reasonableness——Read the black baby s fan in short story of the gram of Spark;
种族偏见与理性失衡──读M·斯帕克的短篇小说《黑婴之谜》
Conetxt learning has become the focus of teaching and learning gradually, Jasper Series is also popular with it, it has prominent character for improving learning, but it has shortcomings too.
情境学习日趋成为教与学的焦点,基于情境教学的杰斯帕系列也随之广为流行,它自然有其促进学习的显著特征,但也存在着不足。
