What is "proxy measurement" in Paragraph 1 likely to refer to
A. Studying the characteristics of glaciers.
B. Measuring the growth signs of aquatic organism.
C. Taking advantage of previous pictures.
D. Using clues left from the past.
运用（ ）可使采购需求预测的客观性大大提高。
A. 指数平滑预测法
B. 德尔菲预测法
C. 客户意见推测法
D. 加权平均数预测法
供应商评估的程序包括（）。
A. 确定供应商评估的时间
B. 确定供应商评估的主要指标
C. 成立供应商评估的小组
D. 综合打分
What is the author's attitude towards global warming theory
A. Negative.
B. Indifferent.
C. Favorable.
D. Neutral.
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