题目内容

为给字符数组赋初值，下列语句中正确的是 (45) 。

A. char s1[]="abcdef";
B. char s2[4]="abcd";
C. char s3[2][3]="abc","xyz";
D. char s4[4][]=’a’,’x’,’s’,’t’;

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案例分析题计算机中的加、减运算常采用机器数的补码表示。已知二进制整数a=+100101，b=-11011，则a+b的补码表示是（），a-b的补码表示是（）。已知二进制整数a=+100101，b=-11011，则a+b的补码表示是（）

A. 00001010
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A. 经常让计算机晒太阳
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A. move
B. replicate
C. backup
D. die out

案例分析题When you open a file or run a program in a computer, a window appears on the desktop of your computer. The （） of the window indicates which program you are currently working in arid its color will become blue if a window is active. When you click on The （） , the window disappears and appears as a button on the taskbar. Clicking on a button in （） will invoke a specific command. The （） of the window indicates which program you are currently working in arid its color will become blue if a window is active.

A. control menu
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C. title menu
D. status bar