问题如下图：
选项：
A. 
B. 
C. 
解释：
题目里写的是cross-border exchange, 这个exchange为什么是跨境商品交换呢？如果理解成跨境货币兑换，不就应该选C了？
NO.PZ2016010802000195 WorlTra Organization (WTO). InternationMonetary Fun(IMF). B is correct. The WTO provis the leganinstitutionfountion of the multinationtrang system anis the only internationorganization thregulates cross-borr tra relations among nations on a globscale. The WTO’s mission is to foster free tra proving a major institutionanregulatory framework of globtra rules. Without suglobtrang rules, toy’s globtransnationcorporations woulharto conceive. 考点 WorlTra Organization (WTO) 解析 WorlTra Organization (WTO) 主要任务就是促进国际贸易的顺利发展。 不太明白 是因为 cross borr 选择的WTO吗exchange 有答案里面又说是两国的汇率？
cross borr exchange是什么意思
老师 这个调节汇率不是应该选IMF吗
