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职称英语
They took ________measures to prevent poisonous gases from escaping.A、fruitfulB
They took ________measures to prevent poisonous gases from escaping.A、fruitfulB
游客
2023-09-29
55
管理
问题
They took ________measures to prevent poisonous gases from escaping.
选项
A、fruitful
B、beneficial
C、sufficient
D、effective
答案
D
解析
fruitful意为“有收获的;富有成效的”;beneficial意为“有利的,有益的”;sufficient意为“足够的,充分的”;effective意为“有效的”。根据句意进行分析,只有effective符合题意,故选D。
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