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单选题
190、These two groups explored the existing ,controlled, languages and researched texts in several maintenance manuals.The results confirmed that simplified language was necessary.
A
这两个小组研究了现有的受控语言,并调查了一些维护手册中的文本。结果证实简化的语言是必要的。
B
这两个小组探索了现有的受控语言,并研究了一些维护手册中的文本。结果证实单一语言是必要的。
C
这两个小组分析了现有的可控语言,并研究了一些维护手册中的文本。结果证实简单的语言是必要的
答案解析
正确答案：A
解析：
解析:explored 调查,探索。researched 研究,调查。simplified 简化的。
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