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The engine has more than 300______, made of a number of different materials.
The engine has more than 300______, made of a number of different materials.
admin
2015-09-30
33
问题
The engine has more than 300______, made of a number of different materials.
选项
A、compositions
B、compounds
C、constitutions
D、components
答案
D
解析
composition“作文;乐曲;组成;结构;成分”,这里的“成分”是指构成某混合物的成分,做此意讲时它为不可数名词,如:Scientists study the composition of the soil.科学家研究土壤的成分。compound“混合物;化合物”;constitution“宪法;体质;体格;(事物的)构造,组成(方式)”,如:the constitution of the solar spectrum“太阳光谱的构造”;component“组成部分”,指整体中的部分,它有连接其他部分的作用,但可以从整体中分离出来,为可数名词,如:the components of a camera lens“组成照相机镜头的各部分”。题句中指发动机有300多个零件,component最符合题意,所以答案应选D。
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