Effects of GaAs,Ga ̄(3+) and As(V) on Germination Physiology of Vegetable Seeds.;
GaAs、Ga~(3+)和As(V)对蔬菜种子萌发生理影响研究
v+v can be eight different kinds of syntactic structures and it is a typical ambiguous structure in Chinese, and so v+v is one of the most difficult problems in Chinese information processing.