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    An international treatyon tobacco tobacoo campanies to make public all the substances they use to make cigarettes has been now in effect. A.calling up B.calling on C.calling in D.calling for 【查看更多】

     

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    An international treaty(条约)on tobacco　　 tobacoo campanies to make public all the substances they use to make cigarettes has been now in effect.

    A、calling up　　 B、calling on　　 C、calling in　　 D、calling for

     

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