循环结构For I%= -1 to –17 Step –2 共执行( )次。

In _____, you organize the support in a paragraph. A: Step 1 B: Step 2 C: Step 3 D: Step 4

What number in the above diagram represents when crossing over takes place? A: step 1 B: step 2 C: step 3 D: step 4

下列正确的语句是（ ） A: FOR X=1 TO 10 STEP -2 B: FOR X$=1 TO 9 STEP 3 C: FOR 1X=10 TO 100 STEP 10 D: FOR X1=10 TO 50

下列程序代码的运行结果为（ ）。 Private Sub Command1_Click() For m = 1 To 10 Step 2 a = 10 For n = 1 To 20 Step 2 a = a + 2 Next n Next m Print a End Sub

计算下列循环语句的次数。（1）For I = -3 To 20 Step 4（2）For I = -3.5 to 5.5 Step 0.5（3）For I = 3.5 to 5.5 step -0.5（4）For I = -3 to 20 step 0

下列程序执行后，sum的结果是________。Dim sum As IntegerFor i = 1 To 4 Step 2 For j = 1 To i Step 2 sum += j NextNext A: 6 B: 9 C: 5 D: 7

step1： _________ ____________step 2: ____________step 3: ____________step4: ____________ ___________step 5: ____________step6: ____________step 7: ____________What's more: ___________

‌下列程序代码的运行结果为（ ）。‍‌Private Sub Command1_Click()‍‌ For m = 1 To 10 Step 2‍‌ a = 10‍‌ For n = 1 To 20 Step 2‍‌ a = a + 2‍‌ Next n‍‌ Next m‍‌ Print a‍‌End Sub‍‌‍ A: 60 B: 50 C: 30 D: 20

A person is standing on a staircase. He walks clown 4 steps, up 3 steps, down 6 steps, up 2 steps, up 9 steps, and down 2 steps. Where is he standing in relation to the step on which he started A: 2 steps above B: 1 step above C: the same place D: 1 step below E: (E) 2 steps below