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【单选题】
更换电能表时,若接有电压互感器,电流互感器,则应分别()。
A.
开路、短路
B.
短路、开路
C.
均开路
D.
均短路
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【简答题】Describe a time you were close to a wild animal. You should say : what animal it was where you saw it and what happened there when you saw it and explain how do people in your country feel about this ...
【单选题】以下程序的输出结果是 public class ko6_9 { public static void main(String args[]) { int sum=0; int ko[][]={{1,2,3},{4,5,6},{7,8,9}}; for(int n=0;n<3;n++) for(int m=0;m<3;m++) sum+=ko[n][m]; System.out.println("s...
A.
sum=55
B.
sum=45
C.
sum=0
D.
sum=9
【简答题】以下程序的输出结果是Public Static void main(){int i;int []a=new int[10];for(i = 9;i>=0;i--) a[i]=10-i; Console.WriteLine("{0}{1}{2}",a[2],a[5],a[8]);}A. 258 B. 741 C. 852 D. 369
【单选题】以下程序的输出结果是 public class Test1 { public static void main(String[] args) { int i, a[] = new int[10]; for (i = 9; i >= 0; i--) a[i] = 10 - i; System.out.println(" " + a[2] + a[5] + a[8]); } }
A.
258
B.
741
C.
852
D.
369
【判断题】交流异步牵引电机由牵引状态转换为电制动状态,需要改变牵引主电路连接方式。
A.
正确
B.
错误
【单选题】以下程序的输出结果是 public class Test{ public static void main(String args[]){ int i; for(i=1;i<=10;i++){ if(i%7!=0) continue; System.out.println(i); } } }
A.
输出1-10
B.
输出1-9
C.
输出1-7
D.
输出7
【单选题】与位图相比较,矢量图最大的优点是
A.
文件容量小
B.
容易制作
C.
文件格式多
D.
适用于表现复杂的场景
【单选题】以下程序的输出结果是 public class Test1{ public static void main(String args[]){ int sum=0; int ko[][]={{1,2,3},{4,5,6},{7,8,9}}; for(int n=0;n<3;n++) for(int m=0;m<3;m++) sum+=ko[n][m]; System.out.println("sum...
A.
sum=55
B.
sum=45
C.
sum=0
D.
sum=9
【单选题】Self-improvement can be seen in countless books’ which explain how people can be happier and more successful in life by improving everything from their vocabulary to their tennis game, or even their w...
A.
self-help
B.
self-improvement
C.
self-discipline
D.
self-reliance
【单选题】计算烧成线收缩的公式是 。
A.
S 烧 = (L 干 -L 烧 )/L 干 ×100%
B.
S 烧 =(L 0 -L 烧 )/L 烧 ×100%
C.
S 烧 =(L 烧 -L 干 )/L 干 ×100%
D.
S 烧 =(L 干 -L 烧 )/100
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