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Students risk health and well being,as well as performance in other end-of-term work, when faculty offers take-home exams without clear, time-limited boundaries.
2017年12月四级真题（第一套）阅读 Section B
英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。