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能源消费弹性系数是指能源消费的增长率与GDP 增长率之比，据我国1998-2004 年的相关数字统计表，回答1-2题 1．表中能源消费弹性系数最高的年份是 [ ] A．1998年 B．1999年 C．2003年 D．2004年 2．表中所示几年间，引起能源消费弹性系数变化的原因，可能有 ①第二产业产值比重有上升趋势 ②汽车拥有量大幅上涨 ③我国单位GDP能耗逐年下降 ④我国能源利用率明显提高 ⑤我国经济增长方式趋于合理 [ ] A．①② B．②③ C．③④ D．④⑤
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