2. 外语
  3. The engine has more than three hundred______, made of a lot of different materials.

The engine has more than three hundred______, made of a lot of different materials.

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问题 The engine has more than three hundred______, made of a lot of different materials.
选项 A、compositions
B、components
C、compounds
D、combinations
答案B
解析 近义词辨析。composition 意为“成分，合成物”，指物体内在固有的不可分割的组成部分，如： the composition of the soil (土壤的成分)；component 意为“成分，部分”，指用于机械装置的组成部分，如： Each of the components is useful in its degree．(每一个元件都有程度不同的用处。)compound 意为“混合物，化合物”，指组合以成为整体，如：Water is a compound of hydrogen and oxygen．(水是氢和氧的化合物。) combination 意为“联合，结合”，指合并、联合的行为，如：His character is a combination of strength and kindness． (他的性格是刚与柔的结合。)原句中是机器的零件，所以只有B)项符合。
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大学英语四级

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