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they use computers to keep the traffic ( ) smoothly. A.being

学习时间:2026-04-01 02:39:10 阅读：6402

they use computers to keep the traffic ( ) smoothly. A.being run B.run C.to sun D.running

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迷路的柠檬

平常的水杯

2026-04-01 02:39:10

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D。running keep sb/sth doing 固定短语让某人/某物一直处于某种状态,记住就可以了。

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难过的小笼包
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2026-04-01 02:39:10
D。running keep sb/sth doing 固定短语让某人/某物一直处于某种状态,记住就可以了。

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