问题详情

According to the passage, when does a trade imbalance occur？
A.When a country has serious economic problem.
B.When a country sells more products overseas thanit imports.
C.When the value of the products a country importsis greater than the value of the product it exports.
D.Whena country cant develop its natural resources.请帮忙给出正确答案和分析，谢谢！