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【題目】5G smart phones are believed to work 9 and 20 times faster than previous______________.

A.onesB.thoseC.themD.that

【答案】A

【解析】

考查代詞詞義辨析。句意:據認為,5G智能手機的運行速度比之前的手機快了920倍。A. ones泛指前面的可數(shù)名詞復數(shù);B. those那些,特指前面提到的可數(shù)名詞復數(shù);C. them他們,指代前面的可數(shù)名詞復數(shù);D. that特指前面提到的單數(shù)名詞或者不可數(shù)名詞。根據語境可知,此處泛指以前的smart phones,應使用ones。故選A。

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