【题目】Staying at home, no socializing and wearing a face mask if going anywhere have proved to be the most ________ ways to prevent the spread of the novel coronavirus.
A.effectiveB.expensiveC.miserableD.suspicious
在线课程【答案】A
【解析】
考查形容词词义辨析。句意：待在家里，不参加社交活动，出门带口罩是预防新型冠状病毒传播的最有效的方法。A. effective有效的；B. expensive昂贵的；C. miserable悲惨的；D. suspicious可疑的。根据空前列举的预防措施及常识可知，此处指“最有效的方法”。故选A。