试题题干
SHORT ANSWER QUESTIONS
Give a brief answer to each of the following questions. You are required to use complete sentences.
Why are the Great Lakes the economic lifeline of the Midwest in the US?
参考答案
试题解析
五大湖为这个地区提供了廉价的运输；此外，上湖区自然资源丰富，下湖区工业发达。