题目内容
【题目】You must do more exercise, ______ twice a week.
A. at least B. at last C. at most
【答案】A
【解析】句意：你必须多做锻炼，至少一周两次。at least至少；at last最后；at most最多。根据You must do more exercise可知此处强调多做锻炼，因此次数应多，故选A。
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题目内容
【题目】You must do more exercise, ______ twice a week.
A. at least B. at last C. at most
【答案】A
【解析】句意：你必须多做锻炼，至少一周两次。at least至少；at last最后；at most最多。根据You must do more exercise可知此处强调多做锻炼，因此次数应多，故选A。