New computers are soon out of date since newer models are______constantly.

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问题 New computers are soon out of date since newer models are______constantly.

选项 A、turned up
B、turned over
C、turned down
D、turned out

答案D

解析 本题考查动词短语辨析。
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本试题收录于: 英语题库普高专升本分类
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