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The engine has more than 300( ),made of a number of different materials.
A.compositions
B.ingredients
C.compounds
D.components
B.ingredients
C.compounds
D.components
参考答案
参考解析
解析:component尤指用于机械装置的(组)成(部)分。A.composition尤用于指物体内在固有的不可分割的(组)成(部)分;B.ingredient主要指混合物之成分,如:蛋糕的一种“成分”(ingredient)是糖,糖的“成分”(compositions)有氢等;C.compound“混合物”。
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