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【多选题】
地球的潮汐变形和自转变形的差别是（）A.
潮汐变形是长球体，自转变形是扁球体
B.
潮汐变形是短周期的，自转变形是长周期的
C.
自转变形幅度大，极半径与赤道半径相差21公里
D.
潮汐变形幅度小，仅有数米
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Variables that are shared by every instances of a class are
A.
instance variables
B.
private variables
C.
public variables
D.
static variables
【单选题】Variables that are shared by every instances of a class are __________.
A.
instance variables
B.
private variables
C.
public variables
D.
class variables
【简答题】外生变量与内生量变(exogenous variables & endogenous variables)
【多选题】What are three influencing variables stood out among the variables mentioned in the related work? (More than one correct answer)
A.
Communication
B.
Coordination
C.
Motivation
D.
ThinkLet
【多选题】Which of the following statements about variables and their scopes are true?
A.
Instance variables are member variables of a class
B.
Instance variables are declared with the static keyword
C.
Local variables defined inside a method are created when the method is executed
D.
Local variables must be initialized before they are used
【单选题】All variables defined in a function are ()
A.
global variables
B.
Local variables
C.
Static variables
D.
Register variables
【判断题】Various types of variables include Class variables, Instance variables, Local variables, Static variables, Automatic variables.
A.
正确
B.
错误
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