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

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

In the mixing step, the velocity gradient G should be ( ) s^-1. A: 200~500 B: 300~500 C: 500~1000 D: 1000~1500

下列For循环语句中，使用错误的是_______。 A: For i = 2 to 10 ```Next B: For i = 2,4,6,8,10 ```Next C: For i = 10 to 2 Step -2 ```Next D: For i = 2 to 10 Step 2 ```Next

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

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

现在的微型计算机的内存大小为2GB，2GB等于()。 A: 2×1000×1000字节 B: 2×1000×1000×1000字节 C: 2×3×1024字节 D: 2×1024×1024×1024字节

我们说某计算机的内存是2GB，就是指它的容量为（）字节。 A: 2×1024×1024×1024 B: 2×1000×1000×1000 C: 2×1024×1024 D: 2×1000×1000