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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
2023-09-23
68
管理
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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