Na+泵转运Na+、K+属于()
A.单纯扩散
B.载体中介的易化扩散
C.通道中介的易化扩散
D.主动转运
E.继发性主动转运
参考答案:D
下面程序: Private Sub Form_Click() Dim x,y,z As Integer x=5 y=7 z=0 CallPI(x,y,z) Print Str(z) End Sub SubP1(By Val a As Integer, By Val b As Integer, c As Integer) C=a+b End Sub 运行后的输出结果为______。
A.0
B.12
C.Str(
D.显示错误信息
大量咯血是指()
A.一次咯血量小于100ml
B.一次咯血量大于100ml
C.一次咯血量大于200ml
D.一次咯血量大于300ml
E.24小时咯血量大于300ml