注意时间线,in 1920's 英国贸易已经衰退了,定位句:in Iran, by contrast, the government played a large role in both challenging British commercial interests and stimulating locally owned enterprise.
思路:The first describes a strategy that has been adopted to avoid a certain problem无疑---第二点是转折说明第一点adopt的strategy忽略了某个好处,于是这个忽略就成了这个strategy的坏处 B中的that goal需要回到problem,然而第二句跟前面描述的problem没关系
b是employee employee employee!!不是 employer