下列程序段中，循环体s = s +1执行了几次？ For i = 0 To 7 Step 3 For j = 0 To 7 Step 2 s = s + 1 Next Next

设X，Y为两个随机变量，且‏P{X ³0，Y ³ 0} = 3/7 , P{X ³ 0} = P{ Y ³ 0} = 4/7 ,‏则P{max(X, Y) ³ 0} = ( )．‏ A: 1/7 B: 3/7 C: 4/7 D: 5/7

下列程序段中，循环体s = s +1执行了几次？For i = 0 To 7 Step 3 For j = 0 To 7 Step 2 s = s + 1 NextNext A: 5 B: 7 C: 12 D: 49

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

中国大学MOOC: 设X，Y为两个随机变量，且P{X ³0，Y ³ 0} = 3/7 , P{X ³ 0} = P{ Y ³ 0} = 4/7 ,则P{max(X, Y) ³ 0} = ( )．

下面的VBA程序段运行时,内层循环的循环次数是( )。 For a= 0 to 7 step 3 For b=a-1 to a+1 step 2 Next b Next a A: 6 B: 7 C: 8 D: 5

多项式p()<br/>= x5+3x2-7x-4在MATLAB中的正确表示为?() A: [1<br/>3 -7 -4] B: [1<br/>0 3 -7 -4] C: [1<br/>3 0 -7 -4] D: [1<br/>3 -7 -4 0]

以下程序段执行后，Label1.Text结果是________。Label1.Text=""For i = 7 To 1 Step -1 If i Mod 3 = 0 Then Exit For Label1.Text &= i & " "Next A: 7 6 B: 7 C: 7 5 4 2 1 D: 6 3

以下程序段执行后，Label1.Text结果是________。Label1.Text=""For i = 7 To 1 Step -1 If i Mod 3 = 0 Then Exit For Label1.Text &= i & " "Next A: 7 6 B: 7 C: 7 5 4 2 1 D: 6 3

以下程序段执行后，Label1.Text结果是________。Label1.Text=""For i = 7 To 1 Step -1 If i Mod 3 = 0 Then Exit For Label1.Text &= i & " "Next A: 7 6 B: 7 C: 7 5 4 2 1 D: 6 3