需求的价格弹性是指商品__________变动的比率所引起的__________变动的比率。
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在需求的价格弹性小于1的条件下,卖者适当__________价格能增加总收益。
A. 降低
B. 提高
[音频]It will ______ roll the ball up again.(来源:有声读物《爱丽丝镜中奇遇记》)
A. take me much time to
B. drive me crazy to
[音频]There was a man. He wanted to _____ here.(来源:美剧《复仇》)
A. kill me right over
B. take me away from
[音频]You can focus on ______.(来源:剑桥雅思5听力真题)
A. the top priority at a time
B. every important thing