近年来，我国的天河二号成为全球最快的超级计算机。神舟十号、嫦

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近年来，我国的“天河二号”成为全球最快的超级计算机。"神舟十号"、"嫦娥三号"发射成功；2014年歼31隐形战机在珠海航展亮相……这说明
①我国鼓励科技创新，建设创新型国家
②我国已经成为科技强国
③科教兴国战略取得重大成果
④我国一些科技水平已步入世界先进行列

A．①②③

B．①④

C．①③④

D．③④

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A．won’t pay; is	B．doesn’t pay; was
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