By just playing classical music is not enough to reduce levels of stress.
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The main topic of this passage is how to reduce levels of stress.
A. 正确
B. 错误
听力原文:These results don't say much for the quality of the teaching.
What does the speaker mean?
A. These results prove that the quality of the teaching is not very good.
B. These results are not convincing to prove anything.
C. These results are not reliable to prove anything.
D. These results are not obtained in a scientific way.
When you find it difficult to concentrate, don't listen to music.
A. 正确
B. 错误
In his book Don Campbell only focuses on Mozart's music.
A. 正确
B. 错误