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    35．When the plane , all the passengers on board should turn off their mobile phones. A．takes off B．takes in C．takes out D．takes up 【查看更多】

     

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    When the plane ____, all the passengers on board should turn off their mobile phones.

    　 A．takes off　 B．takes in　　 C．takes out　　 　　 D．takes up

     

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