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【单选题】
有如下类定义 abstract class animal{...} 下列语句正确的是A.
class dog extend animal{...}
B.
class dog extends animal{...}
C.
class dog implements animal{...}
D.
class dog implement animal{...}
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【简答题】A．dominate B．develop C．damage D．descend
【多选题】Which of the following statements do not describe the principle of Popular Sovereignty in the U.S. Constitution?
A.
The U.S. Government is divided into three branches so that no one branch has all the power.
B.
The U.S. Government itself is limited to the power given to it by the people.
C.
The source of governmental power lies with the people.
D.
This is a power that allows the Supreme Court to decide whether acts and laws are unconstitutional.
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