2. 职称英语
  3. Why are scientists surprised by the findings in their noise study? [br] When the

Why are scientists surprised by the findings in their noise study? [br] When the

游客2023-09-28  23
问题 Why are scientists surprised by the findings in their noise study? [br] When the writer says we cannot return to the good old days, he means that ______.
选项 A、our society is becoming much worse than before
B、in our modern society it is hard to lead a quiet life
C、the old days were much happier than the present time
D、it is impossible for us to reduce noise back to previous levels
答案 D
解析
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