要退出Do…Loop循环,应使用的语句是 。 A: Exit B: Exit Fo C: End Do D: Exit Do

要退出Do…Loop循环,可使用的语句是( )语句。 A: Exit B: Exit Fo C: Exit Do D: End Do

从循环do {......} while中退出并继续执行循环外的语句，应使用____________。 A: exit Loop B: end do C: eak D: exit while

____________ congestion control to prevent the congestion. A: close loop B: open loop C: end loop

思科交换机配置中，从当前模式返回到上一级模式输入命令（ ）,从当前模式直接返回到特权模式输入命令（ ）. A: end ,exit B: exit,exit C: quit,end D: exit,end

Which of the following statements about break statements is incorrect? A: A break statement can appear in an if statement and is used to end the if statement. B: A break statement can appear in a loop statement or a switch statement. C: A break statement can be used to exit a switch statement. D: Multiple break statements can appear in the loop body of a loop statement.

退出For循环可使用的语句为() A: Exit Fo B: Exit Do C: End Fo D: End Do

阅读下面的程序： PriVate Sub Form_C1ick() Dim Check As Booleau，Counter As Integer Check=True Counter=5 Do Do While Counter＜20 Counter=Counter+1 If Counter=10 Then Check=FalSe EXit Do End If Loop Loop Until Check=FalSe Print Counter End Sub 程序运行后，单击窗体，输出结果为______。

若要退出For循环，使用的语句为（ ）。 A: End For B: Exit For C: Exit D: Exit Do

下面不属于循环语句是（ ）。 A: while...end while B: case...end case C: loop ... end loop D: epeat ... end repeat