Gasoline is processed from ______ oil.

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问题 Gasoline is processed from ______ oil.

选项 A、crude
B、raw
C、rough
D、tough

答案A

解析 crude a.天然的,未加工的(crude oil;crude sugar; crude salt; crude materials)(crude的另外两个四级意思是:“简陋的,粗糙的;粗鲁的,粗俗的”:a crude shelter in the forest; a crude drawing;a crude theory;crude people;crude behavior)。raw a.未加工过的;未煮过的,生的:未经训练的,没有经验的。rough a. 粗糙的;粗野的,粗暴的;粗略的,大致的。tough a.(食物等)老的,难嚼的;(人)强壮的,坚强的:能吃苦耐劳的;困难的,艰苦的。
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