可以通过肺部吸收,被吸收的药物不经肝脏直接进入体循环()。
A.静脉注射
B.口服制剂
C.肌内注射
D.气雾剂
E.经皮吸收制剂
参考答案:D
在窗体上画一个名称为Text1的文本框,要求文本框只能接收大写字母的输入。以下能实现该操作的事件过程是( )。
A.Private Sub Text1_KeyPress(KeyAscii As Integer) If KeyAscii<65 Or KeyAscii>90 Then MsgBox"请输入大写字母" KeyAscii=0 End If End Sub
B.Private Sub Text1_KeyDown(KeyCode As Integer,Shift As Integer) If KeyCode<65 Or KeyCode>90 Then MsgBox"请输入大写字母“ KeyCode=0 End If End Sub
C.Private Sub Text1_MouseDown(Button As Integer,Shift As Integer,X As Single,Y As Single) If Asc(Text1.Text)<65 Or Asc(Text1.Text)>90 Then MsgBox"请输入大写字母" End If End Sub
D.Private Sub Text1_Change() If Asc(Text1.Text)>64 And Asc(Text1.Text)<91 Then MsgBox"请输入大写字母" End If End Sub
下列程序的运行结果是( )。# include <iostream.h>class A{int a;public:A( ) {a=0;}A(int aa){a=aa;cout << a++;}};void main( ){A x,y (2),z(3);cout << endl;}
A.0
B.23
C.34
D.25