“Penelope’s web ”means ____.
A. the tactics of delaying sth. on purpose
B. a problem which is hard to solve
C. a crucial moment
D. the source of disaster
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Sphinx was the most cunning man in ancient Greek mythology. Zeus devised a punishment after his death. Sphinx was forced to roll a huge rock up a steep slope.
A. 对
B. 错
测一测(模块4_5)程序阅读填空题:下列语句执行后,输出()个”hello!” ?for(i=0;i<4;i=i+2){for(j=9;j>=2;j=j-3){System.out.print("hello!");}}
测一测(模块4_5)程序阅读填空题:下列语句执行后,输出语句执行()次?for(i=1;i<=10;i=i+5){for(j=10;j>6;j=j-2){System.out.print(i+"*"+j+"="+i*j+"\n");}}
一个完整的计算机系统是由()两大部分组成。
A. 计算机及其外部设备
B. 硬件系统和软件系统
C. 系统软件和应用软件
D. 主机和显示器