His ______ will be invaluable to understanding technological challenges the BBC is facing.

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问题 His ______ will be invaluable to understanding technological challenges the BBC is facing.

选项 A、fantasies
B、expertise
C、ideology
D、humanities

答案B

解析 名词辨义。这四个选项都是名词,fantasies表示“幻想,白日梦”;expertise表示“专门技能;专门知识”;ideology意指“意识形态”;humanities表示“人文学科”。根据句意,对技术人员来说最珍贵的就是专业知识,所以B)项符合题目要求。
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