【简答题】第三段文章及录音: The biggest question I have is why systems like these become more popular in other countries trying to switch to renewable energy? What is confusing is that while China has found a way to ha...
【简答题】The world has a new mania. A mania for (1) ______________. Listen as Chinese students practice their English, by screaming it... How many people are trying to learn English worldwide? (2) ____________...