________we are concerned, this technology has saved us a lot of energy.A、As long

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问题 ________we are concerned, this technology has saved us a lot of energy.

选项 A、As long as
B、As far as
C、As well as
D、As soon as

答案 B

解析 对我们来说,这项技术为我们节省了很多能源。考查固定短语辨析。根据空格后的we are concerned,可知这里用as far as…is concerned这个固定搭配,意思是“对……而言,对……来说”。故选B项。A项As long as(只要)、C项As well as(也)和D项As soon as(一…就……)都不符合语义逻辑,皆可排除。
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