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下列历史事件的先后顺序是 【 】
①《华沙条约》的签订②杜鲁门主义的宣布③马歇尔计划的提出 ④北大西洋公约组织成立
A．②③④①
B．③②①④
C．④②①③
D．①④②③

A.②③④①
B.③②①④
C.④②①③
D.①④②③

【参考答案】

A
【解析】《华沙条约》的签订是东欧社会主义国家为应对西方国家的联盟而签署．因此它肯定排在④之后．杜鲁门主义首先......

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