2. 职称英语
  3. Which of the following gives a general idea of how the noise-killing system work

Which of the following gives a general idea of how the noise-killing system work

游客2025-07-31  1
问题 Which of the following gives a general idea of how the noise-killing system works? [br] Besides its main use the noise-killing system can ______.
选项 A、make a car lighter
B、make a car quieter
C、reduce the cost of a silencer
D、improve the performance of a silencer
答案 A
解析 通过文章第四段Another good thing about the use of noise-killing systems is that it saves the need for a silencer；this not only reduces the weight of a car...得知。
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