Cellphones are to help students focus on their study.A. expandedB. prohibitedC. assignedD. relieved

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【题目】Cellphones are ____________ to help students focus on their study.

A. expandedB. prohibited

C. assignedD. relieved

在线课程

【答案】B

【解析】

考查动词辨析。句意：为了帮助学生集中精力学习，手机被禁止使用。A. expanded扩张，使膨胀；B. prohibited禁止；C. assigned分配，指定；D. relieved解除，减轻。故选B。