∵x+3是最简二次根式,它与-153是同类二次根式,
∴x+3=3,x=0.
窗体上有Text1、Text2两个文本框及一个命令按钮Command1,编写下列程序: Dim y As Integer Private Sub Command1_Click() Dim x As Integer x=2 Text1.Text=Fun2(Fun1(x),y) Text2.Text=Fun1(x) End Sub Private Function Fun1(x As Integer) As Integer x=x+y:y=x+y Fun1=x+y End Function Private Function Fun2(x As Integer,y As Integer) As Integer Fun2=2*x+y End Function 当单击1次和单击2次命令按钮后,文本框Text1和Text2内的值分别是 A) 2 4 2 4 B) 2 44 8 C) 10 10 58 58 D) 4 4 8 8
患儿,5个月,反复阵发性哭闹,发作时面色苍白,呕吐3次,为胃内容物。体检腹部扪及腊肠样块物,肛指检查指套上有果酱样大便。最可能的诊断为()
A.急性胃炎
B.急性肠炎
C.急性阑尾炎
D.急性胰腺炎
E.以上都不是