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【单选题】
In the figure given above, AB is the production-possibility curve of Canada. In the absence of trade, the price ratio is 1 bushel of wheat/bale of cotton as shown by the line PQ. The international price ratio is 0.25 bushels of wheat/bale of cotton as shown by the line RS. I1 and I2 are the pre-trade and the post-trade community indifference curves of Canada respectively. Refer to Figure 4.1, which of the following can be inferred from Figure 4.1?A.
Canada has a comparative advantage in the production of wheat.
B.
Canada has a comparative advantage in the production of cotton.
C.
Canada has an absolute disadvantage in the production of both the goods.
D.
Canada has absolute advantage in the production of both the goods.
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反馈参考答案：
举一反三
【多选题】下列关于洗衣服务叙述正确的是( )
A.
收取衣物的时候不用去清点衣物数量
B.
检查衣物有无破损、特殊污点等,以免引起麻烦
C.
酒店可以考虑推出“保价洗涤收费方式”,即按客人对其所送洗衣物保价额的一定比例收取洗衣费
D.
四、五星级的饭店还应提供客衣的修补服务
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