2. 外语
  3. 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.

admin2017-04-12  55
问题 The engine has more than 300 ______, made of a number of different materials.
选项 A、portions
B、ingredients
C、components
D、shares
答案C
解析 component n.组成部分，部件，元件。
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