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【单选题】
面向对象程序设计过程中,对特定环境下的实例(对象)进行归纳、分析、抽取出实例之间的共性后形成概念的过程。这属于面向对象程序设计的哪一基本特征:()形成的概念称为()。
A.
抽象性，类
B.
封装性，类
C.
抽象性，对象
D.
封装性，对象
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【单选题】6 The people who speak Esperanto hope that the language someday will become the international language for trade, science, and diplomacy.
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【单选题】从结构上考虑，混凝土用的粗骨料，其最大粒径不得超过构件截面最小尺寸的（    ）
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【多选题】列哪些项关于有髓神经纤维跳跃式传导的描述,是正确的
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传导速度比无髓神经纤维快得多
B.
以相邻朗飞结间形成局部电流进行传导
C.
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查看完整题目与答案
【单选题】The Chinese People's War of Resistance Against Japan played a great role in the international anti-Fascist war.
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有包膜，单股负链RNA，不分节段
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包膜刺突含有血凝素和融合蛋白
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查看完整题目与答案