Agriculture was a step in human progress __ which subsequently there was not anything comparable until our own machine age.
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内国反垄断法效力范围超越国家领土，适用于对内国市场竞争产生影响的垄断行为的现象，称为反垄断法的（）
我国目前的外汇管理体制基本上属于部分外汇管制。表现为（）
阅读短文，回答 31～35 题：
第 31 题 Children would play with fire until their hands were burnt away if __________
A. they were given no warning beforehand
B. they had never burnt themselves
C. they had no sense of pain
D. they were fearful of the fire
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