问题
判断题
消费者均衡之点是等产量线与等成本线的相切之点。
答案
参考答案：错
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消费者均衡之点是等产量线与等成本线的相切之点。
参考答案：错
| 用所给词的适当形式填空，其中有两项多余。 | |
history. Last year he 2 a set of four stamps to remember the great book Master Sun's Art of War. This book is one of the 3 and the most important military (军事的) books in the world. The book is so useful and important that it's known by many other countries in the world. The face values of the stamps were 20, 30,60 fen and one yuan, but Mr. Wang spent about 2,000 yuan 4 them. He often 5 the fun of collecting stamps with his friends. He says, "I am very happy when I'm looking at my stamps. They let me know more about the history of our country and make more friends." |