— What should I do before operating the new machine?— You’d better read its first careful

发布时间：2020-08-15 01:01:54

— What should I do before operating the new machine?
— You’d better read its      first carefully.
A. explanations
B. instructions
C. descriptions
D. introductions

网友回答

A. explanations
(答案→)B. instructions
C. descriptions
D. introductions
解析：本题考查名词的词义辨析。explanations“解释，说明”；instructions“说明，指南”；descriptions“描绘，描写”；introductions“介绍，前言”。所以，根据句意应选B。
等。k+s-5#u 
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