某健康人体检发现尿糖（+），下面的检查结果哪一项最有助于诊断糖尿病（）

A.空腹血糖6.1mmol／L

B.餐后2h血糖7mmol／L

C.口服葡萄糖耐量试验减低

D.糖化血红蛋白5.8％

E.尿糖检查证实为葡萄糖

单击命令按钮时，下列程序的执行结果是( )。
Private Sub Command1_Click()
Dim a As Integer,b As Integer,C As Integer
a=3:b=4:c=5
Print SecProc(c，b，A)
End Sub
Function FirProdx As Integer,y As Integer,z As Integer)
FirProc=2*X+y+3*z+2
End Function
Function SecProc(x As Integer,y As Integer,z As Integer)
SecProc:FirProc(z,x,y)+x+7
End Function

A) 20
B) 25
C) 37
D) 32