2.While we were on vacation, we spent most of our time on sports _____ sailing. A: like B: as C: on D: with

语句”varx=0;while(x<20)x+=2“,while循环了_____次。

下列程序段不会出现无限循环的是（ ） A: int i=-1; while(1) i++; B: int i,a; for(i=1;;i++) a+=2; C: int i=2; while(i==4) i+=2; D: int i=2 while(i=4) i+=2;

以下( )不是无限循环。 A: j=100;while(1){j=j%100;j++;if(j&gt;100)break;} B: for(;<br/>;); C: int<br/>k(8);while(k++%2||k%2)cout D: s=32765;while(++s%2||s%2)s++;

对下面三条语句，正确的叙述是。 (1) while(a)i++; (2) while(a==0)i++; (3) while(a!=0)i++;

2.While you are choosing theright domain name or web address, you should keep it _____ and make it ______. A: simple; forgettable B: easy; beautiful C: short; memorable

下列while循环的循环次数是次 int a=1,b=2; while(a++

下列循环嵌套的结构中，正确的是_______。 A: For i = 2,4,6,8,10 ``` Do ``` Loop While s > 0Next B: For i = 2 To 10 ``` Do While s > 0 ``` LoopNext C: For i = 2 To 10 ``` Do While s > 0 ``` Next Loop D: For i = 2 To 10 ``` Do ``` Next Loop While s > 0

‍下列循环语句中有语法错误的是 。​ A: while(x=y) 5; B: while(0); C: do 2 while(x= =b); D: do x++; while(x= =10);

while构成的循环int ks=0; while (ks=2) ks++;执行的次数是( )