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【单选题】
数据模型的规范化可提高数据的 ( )A.
一致性
B.
完整性
C.
可修改性
D.
以上均对
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举一反三
【单选题】Which statement is true about the class of an object that can reference the variable base？（）
A.
It can be any class.
B.
No class has access to base.
C.
The class must belong to the geometry package.
D.
The class must be a subclass of the class Hypotenuse.
【单选题】Which of the following characteristics is not indicative of an enterprise qualifying as a primary beneficiary with a controlling financial interest in a variable interest entity?
A.
The power to direct the most significant economic performance activities.
B.
The power through voting or similar rights to direct activities, which significantly impact economic performance.
C.
The obligation to absorb potentially significant losses of the entity.
D.
No ability to make decisions about the entity's activities.
E.
The right to receive potentially significant benefits of the entity.
【单选题】The following descriptions about collagen fibers, which one is wrong( )
A.
There are periodic cross striations under electron microscope
B.
appear as wavy structures of variable width
C.
are flexible and have a high tensile strength
D.
are straight and slender, no branches
E.
stain readily with eosin
【多选题】Which statements concerning the value of a member variable are true， when no explicit assignments have been made？（）
A.
The value of an int is undetermined.
B.
The value of all numeric types is zero.
C.
The compiler may issue an error if the variable is used before it is initialized.
D.
The value of a String variable is "" （empty string）.
E.
The value of all object variables is null.
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