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据有关资料,10月下旬,反映大宗商品价格走势的CRB指数已从下半年7月份的最高位下跌了42%,跌至2004年12月份的水平。其中天然橡胶价
According to the information, in late October, the CRB index, which reflects the price movements of bulk commodities, has dropped 42% from its highest level in July of the second half of the year to December 2004 level. Which natural rubber price