【单选题】听力原文:W: Whereas European nations have traditionally employed metric units such as meters and grams, the US has employed English units such as feet and pounds. M: Both systems are now in use in the US,...
【单选题】听力原文:W: Whereas European nations have traditionally employed metric units such as meters and grams, the US has employed English units such as feet and pounds. M: Both systems are now in use in the US,...
【单选题】听力原文:W: Whereas European nations have traditionally employed metric units such as meters and grams, the United States has employed English units such as feet and pounds. M: Both systems are now in use...