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【判断题】
当基于已有类创建子类的时候，已有类称为子类或派生类，这个新类称为父类或基类。When subclasses are created based on existing classes, existing classes are called subclasses or derived classes, and this new class is called parent or base classes.A.
正确
B.
错误
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举一反三
【单选题】Which step is typically the most prone to error in the marketing research process?
A.
Problem definition.
B.
Developing the research plan.
C.
Information collection.
D.
Information analysis.
E.
Questionnaire design.
【多选题】有关补间和补间形状的说法错误的有
A.
能用补间实现的动画一定不能用补间形状来实现
B.
补间和补间形状可以嵌套使用
C.
补间和补间形状都可以通过缓动让动画效果更真实自然
D.
创建补间的对象为形状，创建补间形状的对象为元件
【简答题】人的排尿反射是简单的反射还是复杂的反射?胸部脊髓断裂的病人为什么大脑不能控制排尿?此题出自2015年湖北黄石中考生物真题及答案 ,2015年黄石市初中学业水平考试生物试题 人的排尿反射是简单的反射还是复杂的反射?胸部脊髓断裂的病人为什么大脑不能控制排尿?
【单选题】vsftpd的主配置文件是（）
A.
/etc/vsftpd.conf
B.
/var/vsftpd.conf
C.
/etc/vsftpd/vsftpd.conf
D.
/var/vsftpd/vsftpd.conf
【单选题】vsftpd的主配置文件是()
A.
/etc/vsftp.conf
B.
/etc/vsftpd.conf
C.
/etc/vsftd/vsftp.conf
D.
/etc/vsftpd/vsftpd.conf
【单选题】Which of the following statements is correct?
A.
Integrated circuit is a single component including a large number of active devices and their interconnections to realize complex functions.
B.
Circuit designers typically use languages called C++ to design their enormous digital circuits.
C.
Integrated circuit is a single component including a large number of active and passive devices and their interconnections to realize complex functions.
D.
Our life can be separated from the integrated circuit.
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