问题如下：
When Country A increases its exports to Country B, what tends to happen to the exchange rate between the currencies of A and B?
解释：
Country A’s currency tends to strengthen relative to Country B’s currency because importers in Country B will find it necessary to buy Country A’s currency to pay for goods.
出口增加出口国收入的外汇增加导致出口国货币增加、不是出口国货币贬值吗？进口国货币升值啊？这题怎么是反的呢？