皮皮学,免费搜题
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搜题
【单选题】
What are China’s “new four great inventions”?
A.
Compass, gunpowder, printing and paper making
B.
High-speed railways, electronic payments, shared bicycles and online shopping
C.
High-speed railways, electronic payments, infrastructure manufacturing, and online shopping
D.
High-speed railways, electronic payments, online shopping and aircraft carrier
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【单选题】在原发性与继发性肺结核病变的形成中,其发生发展不同的关键因素是()
A.
发病年龄不同
B.
发病部位不同
C.
病变性质不同
D.
机体反应性不同
E.
播散方式不同
【单选题】在原发与继发性肺结核病变的形成中,其发生、发展不同的关键因素是:
A.
发病年龄不同
B.
病变部位不同
C.
病变性质不同
D.
机体反应性不同
【判断题】A parse tree is a graphical representation of a derivation that filters out the order in which productions are applied to replace nonterminals. Each interior node of a parse tree represents the applic...
A.
正确
B.
错误
【判断题】汉朝时在吉林就设置了郡县,唐朝的渤海及后来的辽、金、元各代也都设立府、州、县。
A.
正确
B.
错误
【简答题】Translate the sentences into Chinese. Although this limit is case-dependent, there is nevertheless a consensus that, for practical scalability, the probability of error introduced by the application o...
【单选题】What is the main idea of the passage?
A.
The application of computer in the government management.
B.
The general introduction of e-government and its characteristics.
C.
The comparison between e-government and e-commerce.
D.
The e-Democracy in the government environment.
【简答题】Translate the following sentence into Chinese The application of just a fraction of a volt across the ends of a copper conductor can produce a large current flow.
【单选题】系统测试中,黑盒法在设计测试用例时主要考虑的依据是()
A.
系统功能
B.
输入数据
C.
输出数据
D.
内部逻辑
【单选题】对于迈克尔逊干涉仪产生的等倾干涉图样,其干涉条纹 [ ]
A.
干涉级次中心高,边缘低
B.
干涉级次中心低,边缘高
C.
干涉条纹间距外疏内密
D.
干涉条纹间距相等
【单选题】已知三阶矩阵A的特征值为【图片】, 则下列命题不正确的是( ).
A.
A为不可逆矩阵
B.
A的主对角线元素之和为0.
C.
的基础解系中仅有一个向量.
D.
1和-1所对应的特征向量正交.
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