题目：DuringYongleDaDi'sreign,whatAmericanplantswereintroducedintoChinathroughsouth-eastAsiancountries?
A、Cucumber.
B、Potato.
C、Tobacco.
D、Tomato.
标准答案：BCD
题目：During Yongle Da Di's reign, what American plants were introduced into China through south-east
关键字：