【单选题】听力原文: The twentieth century has brought with it many advances. With those advances, human lives have changed dramatically. In some ways life is worse, but mostly it is better. Changes in food preparat...
【单选题】听力原文: The twentieth century has brought with it many advances. (32) With those advances, human lives have changed dramatically. In some ways life is worse, but mostly it is better. Changes in food pre...