选择目标行为时重点考虑的行为是()。 ["重要,可变的行为","可变,不重要的行为","重要,不可变的行为","不重要,不可变的行为"]
在数字逻辑电路中(),这种逻辑称为正逻辑。 ["用电路的高电平代表逻辑1","用电路的低电平代表逻辑0","用电路的高电平代表逻辑0","用电路的低电平代表逻辑1","用电路的高电平代表逻辑2","用电路的低电平代表逻辑2"]
健康教育项目目标一般必须回答的问题,简称为()。 ["3W,3H","4W,2H","3W,2H","4W,3H"]
1. import java.util.*; 2. public class Example { 3. public static void main(String[] args) { 4. // insert code here 5. set.add(new integer(2)); 6. set.add(new integer(l)); 7. System.out.println(set); 8. } 9. } Which code, inserted at line 4, guarantees that this program will output [1,2]? () [" Set set = new TreeSet();"," Set set = new HashSet();"," Set set = new SortedSet();"," List set = new SortedList();"," Set set = new LinkedHashSet();"]
环境污染源主要有哪些?
简述道德理想、道德原则、道德规范的关系。