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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606
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图A-10 活牛
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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606
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图A-11 美国短期国债
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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606
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图A-12 英镑
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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606
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图A-13 德国马克
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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606
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图A-14 铜
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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606
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图A-15 原油
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资料来源：Reprinted with permission.1988by Commodity Perspective，20South Wacker Drive，Suite 1820，Chicago，IL 60606