試題詳解

7. The cities of Portland, Oregon, and Minneapolis, Minnesota, are at about the same latitude, but Minneapolis has much hotter summers and much colder winters than Portland. Why?
(A)They are not at the same exact latitude.
(B)The ocean near Portland moderates the temperature.
(C)Fresh water is more likely to freeze than salt water.
(D) Minneapolis is much windier, due to its location in the middle of North America.