单项选择题

A．Finish them on schedule.
B．Browse them all during the first week.
C．Read the relevant ones ahead of lectures or seminars.
D．Select and read the most helpful.
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单项选择题
A．Because he was never afraid of anything.B．Because he was protected by a special medium.C．Because he had enough experience.D．Because it was his job.
A．Because he was never afraid of anything.
B．Because he was protected by a special medium.
C．Because he had enough experience.
D．Because it was his job.
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