Which three SELECT statements display 2000 in the format "$2,000.00"? （） [" SELECT TO_CHAR(2000, '$#,###.##') FROM dual;"," SELECT TO_CHAR(2000, '$0,000.00') FROM dual;"," SELECT TO_CHAR(2000, '$9,999.00') FROM dual;"," SELECT TO_CHAR(2000, '$9,999.99') FROM dual;"," SELECT TO_CHAR(2000, '$2,000.00') FROM dual;"," SELECT TO_CHAR(2000, '$N,NNN.NN') FROM dual"]
当塞柄密封圈密封不严时，正确的处理办法是（） ["A、更换塞柄上的密封圈 ","B、焊死塞柄的单向阀 ","C、卡环卡死塞柄 ","D、更换塞柄"]
What is the result when the programmer attempts to compile the code and run it with the command java Converter 12？（） ["It is true that j==i.","It is false that j==i.","An exception is thrown at runtime.","Compilation fails because of an error in line 13."]
Which three possible values can be set for the TIME_ZONE session parameter by using the ALTER SESSION command？ （） [" os"," local"," -8：00"," dbtimezone Li"," Australia"]
Petri网的图简称为PNG，下述说法中（）不能表达其特征 ["Petri网是对离散并行系统的数学表示","Petri网能够表达并发的事件","Petri网通常被描述为一张有向图","Petri网中事件到来就被激发"]
基准地价有哪些作用？
