◎ 题干
It's extremely dangerous for the drivers to _____ speed as the traffic lights are changing.
[     ]
A. pull up
B. put up
C. rise up
D. pick up
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It's extremely dangerous for the drivers to _____ speed as the traffic lights are changing. [ ]A. pull up B. put upC. rise up D. pick up …”主要考查了你对  【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。