【題目】The first computers the 1940s were bigger than cars.

A.inB.onC.atD.since

【答案】A

【解析】

句意:在20世紀(jì)40年代,第一臺(tái)電腦比轎車大。

本題考查介詞辯詞。in后接沒有具體到某一天的時(shí)間(世紀(jì)、年、季節(jié)、月等)以及早晨、下午和晚上;on后接具體到某一天的時(shí)間或具體某一天的早晨、下午和晚上;at后接鐘點(diǎn)或中午、夜間;since后接時(shí)間點(diǎn),常與現(xiàn)在完成時(shí)連用。in the 1940s“在20世紀(jì)40年代”,故選A。

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