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题目

n.真空;空间;真空吸尘器adj.真空的;利用真空的;产生真空的vt.用真空吸尘器清扫A. vulnerabilityB. variationC. vacuumD. vocation

n.真空;空间;真空吸尘器adj.真空的;利用真空的;产生真空的vt.用真空吸尘器清扫

A. vulnerability

B. variation

C. vacuum

D. vocation

题目解答

答案

C. vacuum

解析

本题考查英语词汇辨析，核心在于根据中文释义准确选择对应的英文单词。解题关键点：

识别词根和常见后缀：四个选项均以字母v开头，需结合中文释义中的核心含义（如“真空”“清扫”等）锁定正确词根。
区分同源词：注意选项中可能存在的近义或派生关系（如“vacuum”与“vacuum cleaner”）。
排除法应用：通过排除明显不符合中文释义的选项（如“vulnerability”与“弱点”相关）缩小范围。

选项分析

A. vulnerability

词根：来自“vulnerable”（易受攻击的）
含义：弱点、易损性
排除理由：中文释义中未提及“弱点”相关含义

B. variation

词根：来自“vary”（变化）
含义：变化、变体
排除理由：中文释义强调“真空”和“吸尘器”，与“变化”无关

C. vacuum

词根：直接对应“真空”（n.）和“用真空吸尘器清扫”（vt.）
匹配点：中文释义中的“真空”“真空吸尘器”“用真空吸尘器清扫”均与“vacuum”完全对应

D. vocation

词根：来自“vocational”（职业的）
含义：职业、行业
排除理由：中文释义未涉及职业相关概念

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