下面程序最后输出的结果是( )public class A{ String str=new String(“good”); char[] ch={‘a’,’b’,’c’}; public static void main(String args[]){ A ex=new A(); ex.change(ex.str,ex.ch); System.out.print(ex.str+””+ex.ch[0]); } public void change(String str,char ch[]){ str=”test ok”; ch[0]=’g’; }} A: good a B: good g C: test ok a D: test ok g

在下列给出的条件表达式，不正确的是&#91; &#93; A: (ch>=65) and (ch<=90) B: 'A' <= ch <= 'Z' C: 'A' <= ch && ch <= 'Z' D: (ch>='A') and (ch<='Z')

判断char型变量ch是否为大写字母的正确表达式是()A.‘A’&#91;=ch<=‘Z’ B.(ch&#93;=‘A’)&(ch&#91;=‘Z’) C.(ch&#93;=‘A’)&&(ch&#91;=‘Z’) D.(‘A’<= ch)AND(‘Z’&#93;= ch) A: ‘A’<=ch<=‘Z’ B: (ch>=‘A’)&(ch<=‘Z’) C: (ch>=‘A’)&&(ch<=‘Z’) D: (‘A’<= ch)AND(‘Z’>= ch)

分析下程序，并写出程序的运行结果。[br][/br] # include &#91;stdio.h&#93; main () { char ch; while ((ch=getchar())!="\n" ) { if(ch>= 'A'&&ch&#91;= 'Z') ch=ch + 32; else if(ch &#93;='a'&&ch&#91;= 'z') ch = ch-32; printf ("%c",ch ); } } 从键盘输入ABCdef<回车&#93;，则输出结果是（ ）。

中国大学MOOC: 字母组合ex在下列哪些单词中发&#91;ɛgz&#93;音？

【单选题】ex amine A. ex pert B. ex cellent C. ex press D. ex ample A. ex pert B. ex cellent C. ex press D. ex ample

有以下程序 #include main() {char ch &#91;3&#93;&#91;5&#93;={"AAAA","BBB","CC"); printf ("%s ",ch&#91;2&#93;); }

列哪个单词中的字母ch，发的是&#91;k&#93;？

有以下程序#include &#91;stdio.h&#93; void main(){ int ch=020; printf("%d\n", ch=ch>>1); }程序运行后的输出结果是（ ）。 A: 10 B: 40 C: 32 D: 8

Which one of the following expressions is the most accurate?: CA - IM = EX|CA = EX + IM|CA = EX - IM|CA = EX = IM|CA = IM - EX