A learner’s stages of L2 development are connected by his or her L1 and culture.It is,accordingly,of paramount importance to understand the second language lea
Due to the extensive gullying from historically excessive erosion in the loess plateau of China, much of this region is being converted to native grass and shru
In this paper,a horizontal 2-D numerical model has been developed to simulate flow processes in dike burst. The finite difference method is used in computation.