In fact, in 1970 the SBA explicitly stated that their main goal was to increase the number of minority-owned businesses。。。 This ownership gap was held to be the result of past discrimination
第二段A possible explanation for this inconsistency is that legitimation and competitive forces transcend national boundaries, while studies typically restrict their analysis to the national level. 是研究限制了分析,而不是模型的问题。
最后一句。。。 finding that the model's operation is seen more clearly。所以是还是模型有用。选E
a中的who在修饰临近的五个,而不是only one
错选a