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It can be inferred from the passage that the author ________.
A) is in favor of prohibiting passengers‘use of electronic devices completely
B) has overestimated the danger of electromagnetic interference
C) hasn‘t formed his own opinion on this problem
D) regards it as unreasonable to exercise a total ban during flight

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出自：河南师范大学-小学教育（本科)-大学英语Ⅱ

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