NO.PZ2018062003000217
问题如下：
When it comes to a country with a trade deficit, which of the following could be the consequence?
选项：
A. The prices of domestic goods decline and the exports expand.
B. The domestic money supply expanded.
C. Automatic inflow of gold.
解释：
A is correct.
When a country has a trade deficit, the gold woud outflow the country. The country will undertake a contraction a restrictive money supply. In order to increase its exports , the country will decline the price.
考点：The Trade Balance
解析：当一个国家出现贸易逆差时，就表明该国进口了更多的商品，那么代表资金的黄金储备就会流出该国。资金外流变相等于国家降低了市场货币供应，实施了紧缩的政策。所以BC选项错误。
为了增加出口，这个国家将降低商品的售价格。所以A选项正确。
美国逆差这么大，也没见出口扩大了。 商品价格我理解是因为进口商品流入且有竞争性供给增加价格下降；但出口扩大没有这个逻辑。请问老师如何理解？