【单选题】How many countries are there on Earth? (passage 1)
【判断题】同一个消费者来说,同样数量的商品总是提供同量的效用。
【简答题】Listen to the next part of the recording and answer the questions. Write NO MORE THAN THREE WORDS OR A NUMBER. 1. What else are the students going to research? 2. How many countries do they know of wh...
【单选题】根据课程内容,下列关于“创新”与“创业”之间关系的表述,正确的是()
【判断题】“瓜田李下”对应的是数学概念,“刻舟求剑”对应的是社会学概念。
【简答题】How many countries will be ______ in the Olympic s?(participate)
【单选题】How many countries does Great Britain consist of?