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【单选题】
化石燃料仍然是当今世界的主要能源，石油甚至成为影响国际经济和导致局部战争的重要因素。下列有关石油和煤的叙述错误的是
A.
烟煤干馏生成焦炭和煤焦油等物质的过程是化学变化
B.
根据沸点不同可以从石油中分别得到汽油、煤油、柴油等燃料，这一过程中石油发生 的是物理变化
C.
汽油在汽车发动机内燃烧后有H 2 O和CO 2 生成，所以汽油中一定含有C、H、O三种元素
D.
因地下石油储量有限和为减少CO 2 排放，开发太阳能、风能等新能源
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举一反三
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B.
先出库核算，再入库核算
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Driving
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got
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have caught
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was caught
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【判断题】Assumptions make the world easier to understand because they simplify reality and focus our attention.
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【单选题】碾压混凝土路面开始碾压即摊铺完毕,碾压分( )3个阶段。
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have caught
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【判断题】Assumptions make the world easier to understand because they simplify reality and focus our attention.
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