随机产生10个学生的成绩0~100(包括0、100)保存到数组,并求最大值、最小值和平均值,最后在图片框Picture1显示数组每个元素及统计结果。Private Sub Command1_Click() Dim a%(9), nMax%, nMin%, nAvg%, i% Randomize For i = 0 To 9 a(i) = Rnd * ______(1)______ Next nMax = a(0) nMin = ______(2)______ nAvg = a(0) For i = 1 To 9 If a(i) > nMax Then nMax = ______(3)______ End If If a(i) ______(4)______ nMin Then nMin = a(i) End If nAvg = nAvg + a(i) Next ______(5)______ = nAvg / 10 Picture1.Cls For i = 0 To 9 Picture1.Print a(i) Next Picture1.Print "最大值:"; nMax Picture1.Print "最小值:"; nMin Picture1.Print "平均值:"; nAvg End Sub 补全程序,在答题时,务必在答题框中写好题号和答案,如下: (1): _________ (2): _________ (3): _________ (4): _________ (5): _________
若某直流他激电机的(nmax)=3000rpm,ΔnN=50rpm,求:
(1)S≤0.2时的调速范围D
(2)求(nmin)Mn等于多少?
(3)求nomin
A.机组运行时的最高转速
B.机组强迫振动频率和自由振动频率相重合时的最低转速
C.机组强迫振动频率和自由振动频率相重合时的最高转速
D.机组强迫振动频率和自由振动频率相重合时的转速