【題目】The computer system_________ suddenly while he was watching news on the Internet.

A. broke out B. broke in

C. broke up D. broke down

【答案】D

【解析】

試題分析：考查動(dòng)詞短語(yǔ)。broke out戰(zhàn)爭(zhēng)或自然災(zāi)害等突然爆發(fā)；broke in闖入；broke up分手、分解；broke down拋錨，身體垮掉，生意失敗，崩潰，談判失敗。本句句意為：當(dāng)他在網(wǎng)上搜索信息時(shí)，計(jì)算機(jī)系統(tǒng)突然……。根據(jù)句意，選擇D最為恰當(dāng)，表示系統(tǒng)崩潰。

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