NO.PZ2021071301000001
问题如下：
One factor explaining the downward trajectory of the aggregate demand curve is the understanding that a reduced price level implies the real exchange rate:
选项：
A.weakens, rendering local products more affordable abroad and making imports less viable, which elevates the net export value.
B.strengthens, causing domestic products to be pricier for foreign markets and enhancing the attractiveness of imports, thereby augmenting the net export volume.
C.strengthens, reducing the competitiveness of both the nation's exports and imports, which translates to a decline in net exports
解释：
B is correct. A lower price level results in a weaker real exchange
rate, making domestic goods cheaper to people in other countries and
imports less competitive, resulting in a higher level of net exports.
B正确。较低的价格水平导致较弱的实际汇率，这使得国内产品对其国来说更便宜，进口产品的竞争力下降，导致净出口水平上升。
B选项中的这句话causing domestic products to be pricier for foreign markets and enhancing the attractiveness of imports, 是不是说反了。是不是应该把 pricier换成cheaper,然后后面增加的是exports
