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【单选题】
In the figure given below 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. Which of the following can be inferred from this figure? Wheat (bushels) Cotton (bales) CanadaA.
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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【简答题】共有序列(consensus sequence)
【单选题】In general there is consensus that ________ should be free but there is no such consensus that ________ should be free.
A.
international investment; international goods trade
B.
international investment; international trade
C.
international trade; international goods trade
D.
international trade; international investment
【简答题】A contract may be modified ifthe parties reach a consensus through consultation.
【单选题】对于标高，下列描述错误的是（）
A.
使用“标高”命令 ，可定义建筑内的 垂直高度或楼层
B.
要添加标高，必须处于剖面视图或立面视图中
C.
当编号移动偏离轴线时，如果切换至三维范围，其效果将影响至其他视图
D.
用“标高”命令创建标高时，会同时创建平面视图