下元虚冷、肾不纳气之虚喘及痰饮咳喘，上下虚证宜选

A．乌药

B．沉香

C．肉桂

D．干姜

E．香附

下列程序的运行结果为______。Private Sub Command1_ Click() Dim s As Long Dim x As Integer s = 0 for x = 99 To 1 step - 2s=s+ x Next x Print sEnd Sub

A．100

B．500

C．2500

D．5000