简介:trading rights and distribution services will be progressively phased in over three years. China will also open up sectors related to distribution services,and domestic and international services in six years. China will permit 50 percent foreign equity share for value-added and paging services two years after accession,as well as barriers such as quotas and licenses on U.S. products. TARIFFS Tariffs cut from an average of 24.6 percent to an average of 9.4 percent overall and 7.1 percent on U.S. priority products. China will participate in the Information Technology Agreement (ITA) and eliminate all tariffs on products such as computers
简介:trading rights and distribution services will be progressively phased in over three years. China will also open up sectors related to distribution services,and domestic and international services in six years. China will permit 50 percent foreign equity share for value-added and paging services two years after accession,49 percent foreign equity share for mobile voice and data services five years after accession
简介:目的:通过检测藏獒黑素皮质激素受体1(MClR)基因的单链构象多态性(SSCP)在不同毛色群体中的分布,探讨MClR基因多态性与毛色表型的相关性。方法:采用DNA测序技术,选择不同毛色藏獒的DNA为样本,根据GenBank发布的荷斯坦牛MClR基因序列设计一对引物,采用PCR-SSCP技术分析MClR基因在藏獒中的SSCP。结果:MClR基因在藏獒中具有PCR-SSCP多态性,分别检测到3种基因型(AA、AB和BB);对MClR基因多态性片段DNA克隆测序后发现,MClR基因在编码区第313位存在单碱基突变(G-,A),该突变导致第105位氨基酸发生由丙氨酸向苏氨酸的改变(T105A)。结论:肘CJR基因的多态性与毛色性状不存在显著的相关性。