set2={1,2,3}set2.add(5)=set2.remove(1)=set2.discard(1)=len(set2)=2 in set2=2 not in set2=set6=set2.copy(); set6=set2.clear();set2=

The alarm clock (钟) ______ for 6:00 a.m. yesterday. A: has set B: was set C: set

14. -- Can I go to the meeting together with you tomorrow?-- Of course. Remember to set your alarm at 6:00 as we will ____ early in the morning for fear of traffic jam. A: set down B: set about C: set off D: set up

在“课程表”中修改“高等数学”课程的课时数为96，学分为6，使用SQL命令( )。 A: INSERT 课程表 SET 课时数=96,学分=6 WHERE 课程名称='高等数学' B: DELETE 课程表 SET 课时数=96,学分=6 WHERE 课程名称='高等数学' C: UPDATE 课程表 SET 课时数=96,学分=6 WHERE 课程名称='高等数学' D: SELECT 课程表 SET 课时数=96,学分=6 WHERE 课程名称='高等数学'

下列程序段执行的结果是（）。 declare @s int ,@i int ,@j int set @s=0 set @i=1 while @i&lt;=3 begin set @j=1 while @j&lt;=@i begin set @s=@s+@j set @j=@j+1 end set @i=@i+1 end <br/>print @s A: 12 B: 10 C: 6 D: 3

The terms and conditions of hire are (6)… below. A: Written B: set out C: drafted D: depicted

如果N=2，Sum(N)是一个函数，且Sum(1)=5，那么语句：Set Sum=Sum(N-1) +N将把值6赋给Sum。If N = 2, Sum (N) is a function and Sum (1) = 5, then the statement:Set Sum = Sum (N-1) +NThe value 6 will be assigned to Sum.

The rain looked as though it had ______for the night. A: set off B: set in C: set out D: set up

The sun ______ in the west. A: sets B: will set C: set D: is going to set

A new school has been _____there. A: set out B: set off C: set up D: set down