Purchase tax was not payable on goods for export.出口商品不需要交购买税。As the domestic market becomes saturated, firms begin to export the product.由于国内市场饱和，各公司开始外销。The Institute of Export now fears that 100,000 jobs will go.现在出口协会...
The adenovirus which are used in the cancer gene therapy replicatingformreplicating form.基因导入系统是恶性肿瘤基因治疗中急需解决的问题.Methods: The kidney of SD rats were transfected with CTLA 4 - Ig gene - recombined adenovirus.方法以CTLA4 -Ig ...