【简答题】听力原文: Another reason for the worldwide use of the English language is its use throughout the Commonwealth,' which includes a quarter of the world's people in one-sixth of the world's land area. All of...
【单选题】听力原文: The woman's liberation movement has become an important social movement throughout much of the world today. In the past few decades, it has become one of the most important social movements in t...
【单选题】Scientists have ______ for years that turbulence within the gaseous clouds found throughout the Milky Way stymies star formation, but some of the forces behind this disturbance remain ______ .