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【判断题】
，春秋末期，中国古代著名的军事战略家。A.
正确
B.
错误
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举一反三
【简答题】第2次课,课堂练习1(在超星学习平台上完成,提交程序代码或手写代码照片) 时间:15分钟 1)参考电子教材103页文件3-18,104页文件3-19,定义一个Student类,在该类中定义一个班级名称静态成员变量(String类型) 2)定义两个静态方法,分别为void classBegin()和void doExercises() 3)classBegin()方法打印出:同学们开始上课。 4)d...
【简答题】Consider a code that satisfies the suffix condition: No codeword is a suffix of any other codeword. (i) Is this a uniquely decodable code? Why? (ii) Can you relate the minimum average length of Suffix...
【单选题】In the relation of tblHire (Loan_Num, ember_Id,Video_Code,Hire_Period, Issue_Date,Due_Date,Return_Date, Reminded,Fine,Paid), Which SQL statements can find the average fine(s) by member where the avera...
A.
select Member_Id , AVG ( Fine ) as Average_Fine from tblHire group by Member_Id where AVG ( Fine )> 16 ;
B.
select Member_Id , AVG ( Fine ) as Average_Fine from tblHire group by Member_Id having AVG ( Fine )> 16 ;
C.
select Member_Id , average ( Fine ) as Average_Fine from tblHire group by Member_Id having average ( Fine )> 16 ;
D.
select Member_Id , AVG ( Fine ) as Average_Fine from tblHire order by Member_Id having AVG ( Fine )> 16 ;
【单选题】What will be the output of the following Python code? s=["pune", "mumbai", "delhi"] [(w.upper(), len(w)) for w in s]
A.
Error
B.
[‘PUNE’, 4, ‘MUMBAI’, 6, ‘DELHI’, 5]
C.
[PUNE, 4, MUMBAI, 6, DELHI, 5]
D.
[(‘PUNE’, 4), (‘MUMBAI’, 6), (‘DELHI’, 5)]
【简答题】?LEN(“计算机”)＜LEN(“COMPUTER”)=【 】。
【单选题】What will be the output of the following Python code? a=["Apple","Ball","Cobra"] a.sort(key=len) print(a)
A.
[‘Apple’, ‘Ball’, ‘Cobra’]
B.
[‘Ball’, ‘Apple’, ‘Cobra’]
C.
[‘Cobra’, ‘Apple’, ‘Ball’]
D.
Invalid syntax for sort()
【简答题】Determine Θ for the following code in the average case. Assume that all variables are of type int.
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