下列关于函数和存储过程的说法正确的是()。 ["PL\/SQL函数的代码中必须包含RETURN语句","存储过程可以没有返回值,而且使用call语句调用","存储过程的返回语句中可以带表达式","存储过程和存储函数都可以出现在表达式中"]
Num lock键的作用是()。 ["锁定数学功能","锁定大写","删除字符","输入上档字符"]
The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called (). ["explosive range","flash point","ignition temperature","combustion temperature"]
合格证班计划保留时间为()。
个人自助循环贷款自助放款起点为()元。 ["1000","2000","3000","5000"]
LKJ2000型监控装置“轮对空转”抑制时间()秒。