本篇的Introduction使用什么字词强调quantum的重要性？
A. weak magnetic fields.
B. is at the heart of.
Classical charge transport
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本篇摘要的第三句是属于…?
A. Introduction里的Background.
B. Introduction里的Problem.
C. Introduction里的Purpose
本篇摘要的第一句是属于…?
A. Introduction里的Background.
B. Introduction里的Problem.
C. Introduction里的Purpose
下列哪个关键词可帮助你判断这是Results?
A. The study was done in...
B. Participants and investigators were masked...
C. Estimated weight loss of 10% or more occurred…..
Results是甚么时态?
A. 过去式
B. 现在式
C. 未来式
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