【单选题】Pick the incorrect dimensioning out. (Single option: 10 points)
【判断题】单模光纤采用LD 或光谱线较窄的LED 作为光源,能传输较远距离。
【单选题】When dimensioning for a cylinder, the dimension should be in circle view.
【单选题】计算机病毒主要是造成________的破坏或丢失。
【单选题】The feature labelled dimensioning 6×1.5 is: (Single option: 10 points)
【单选题】The symbol that represents thickness in dimensioning is ( )
【单选题】public class Ex3 { public static void main(String[] args) { int i,sum=0; for(i=1;i<=3;i++) sum+=i; System.out.println(sum); } } 程序运行结果为()