约在第1腰椎高度起于腹主动脉分支的是( )
A. 肠系膜上动脉
B. 肠系膜下动脉
C. 肾动脉
D. 第1对腰动脉
E. 以上都不对
不属于髂内动脉脏支的是
A. 阴部内动脉
B. 闭孔动脉
C. 子宫动脉
D. 脐动脉
E. 直肠下动脉
下列程序执行后,变量x的值为()。Private Sub command1_click()Dim a, b, c, d As SingleDim x As Singlea = 100: b = 20: c = 1000If b > a Thend = a: a = b: b = dEnd IfIf b > c Thenx = bElseIf a > c Thenx = cElsex = aEnd IfEnd Sub
A. 0
B. 100
C. 1000
D. 20
有如下程序:Private Sub Command1_Click()xcase = 1t = InputBox("请输入一个数:")Select Case tCase Is > 0y = xcase + 1Case Is = 0y = xcase + 2Case Elsey = xcase + 3End SelectPrint xcase; yEnd Sub程序运行时,在对话框中输入-1,则显示的结果为()。
A. 1 1
B. 1 2
C. 1 3
D. 1 4