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    精英家教网 > 高中英语 > 题目详情
    One way for students to prevent H7N9 flu virus is to open the windows of the classroom to allow the air to ________.
    A．accumulateB．circulateC．illustrate D．accelerate
    B

    试题分析：句意：对学生而言，阻止H7N9流感病毒的一种方法就是打开教室的窗户，让空气流通。accumulat积累；circulate循环；illustrate 阐明、图解；accelerate 加速。
    考点: 考查动词的用法。
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