国际贸易中的小国，是指出口产品在国际市场上份额很小，因此只能是产品的国际价格的被动接受者()
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国内两种产品的交易价格构成了国际上两种产品交易价格的上限和下限()
一个国家的贸易无差异曲线只有一条。()
参考答案：错误
How did the old man respond to Rossetti s negative comment？
A. He was angry and desperate.
B. He was surprised and disappointed.
C. He was discouraged, but took it calmly.
D. He was hurt, but could do nothing about it.
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