题目选项分析

In the United States one of the earliest challengers of the economic principle of free trade was Alexander Hamilton, who in 1791 advocated government policies that would encourage indigenous manufacturing while protecting it from competition from British exports.

In the United States one of the earliest challengers of the economic principle of free trade was Alexander Hamilton, who in 1791 advocated government policies that would encourage indigenous manufacturing and to protect it from competition from British exports.