不定项选择

层流火焰速度VL越大，单位时间内火焰前锋面扫过的体积越大，火焰前锋面越厚

A．正确
B．错误

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问答题

找出100以内所有可以拆成3个连续自然数之和的数（如：6=1+2+3）,请将程序补充完整。 Option Explicit Private Sub Command1_Click() Dim I As Integer, N As Integer Dim Js As Integer, S As String For I = 1 To 100 If Fun(I, N, Js) Then S = Str(I) & = & N Do N = N + 1 S = S & + & N Loop List1.AddItem S End If Next I End Sub Private Function Fun(L As Integer, M As Integer, Js As Integer) As Boolean Dim I As Integer, Sum As Integer, K As Integer For I = 1 To L K = 0 Do While Sum K = K + 1 Js = Js + 1 Sum = Sum + Js Loop If Sum = L And K = 3 Then M = I Fun = True Exit For End If Next I End Function

单项选择题

胸骨骨髓穿刺与穿刺针角度为？A. 30-40°。B. 50°。C. 60°。D. 70°。

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