Xu Datong explained clearly what is Guasha.
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The social workers had some change in the court after Datong's explanation.
A. 对
B. 错
John Quinlan wanted to find out the secret of Guasha.
A. 对
B. 错
John Quinlan will change his idea on Guasha in the end of the video.
A. 对
B. 错
定温过程也是定热力学能过程和定焓过程。
A. 对
B. 错
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