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Old-fashionedphonesmatterwhenwirelessnetworks_____indis...

練習題1.26W

問題詳情:

Old-fashionedphonesmatterwhenwirelessnetworks_____indis...

Old-fashioned phones matter when wireless networks _____ in disasters.

   A. turn down    B. break down          C. turn out    D. break out

【回答】

B

知識點:動詞

題型:選擇題

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