He can hardly swim, _______? [ ]
A. couldn't he?
B. can't he
C. could he
D. can he
答案:D
肺水肿病人应取
A.左侧卧位,头低足高
B.平卧
C.端坐,两腿下垂
D.半坐卧位
E.俯卧位
编写如下事件过程: Private Sub Form_MouseDown(Button AS Integer,Shift AS Integer,_ X As Single,Y As Single) If Shift=6 And Button=2 Then Print,"PC" End If End Sub 程序运行后,为了在窗体上输出“PC”,应执行的操作为()。
A.主索引
B.候选索引
C.惟一索引
D.普通索引