【題目】The new machine, according to the report, will work twice as fast, ______ greatly reducing costs.

A.soB.evenC.yetD.thus

【答案】D

【解析】

考查詞語辨析。句意：據(jù)介紹，這臺新機器的工作速度將是原來的兩倍，從而大大降低了成本。A. so因此；B. even甚至；C. yet但是，然而；D. thus因此，從而。根據(jù)前后兩句的內容可知，前面的新機器工作效率是以前的兩倍，導致后面的結果，so和thus都有“因此”之意，但so是連詞，后面跟句子，而thus是副詞，后可以跟動詞-ing形式。本句空格后是動詞的-ing形式作結果狀語，因此要用thus。故選D。

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