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【单选题】
柴油馏分组成对蒸发速度影响很大，馏分组成较轻的柴油，其蒸发速度快，有利于形成可燃混合气，使得燃烧速度增快。但馏分太轻是有害的，因为馏分太轻，其自燃点较高，容易引起（）A.
爆炸
B.
震动
C.
爆震
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皮皮学刷刷变学霸
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【单选题】While I was in the foreign country, my younger brother always ____ me of what was happening in big cities in time.
A.
approved
B.
accused
C.
informed
D.
warned
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A.
人是万物的尺度
B.
认识你自己
C.
美德即知识
D.
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A.
so could I
B.
nor could I
C.
so can I
D.
nor I could
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A.
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B.
树立榜样法
C.
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D.
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