数据库中有工资表，包括“姓名”、“工资”和“职称”等字段，现要对不同职称的职工增加工资，规定教授职称增加15%，副教授职称增加10%，其他人员增加5%。下列程序的功能是按照上述规定调整每位职工的工资，并显示所涨工资的总和。请在空白处填入适当的语句，使程序可以完成指定的功能。 Private Sub Command3_Click() Dim ws As DAO.Workspaee Dim db As DAO.Database Dim rs As DAO.Reeordset Dim gz As DAO.Field Dim zc As DAO.Field Dim sum As Currency Dim rate As Single Set db=CurrentDb() Set rs=db.OpenRecordset("工资表") Set gz=rs.Fields("工资") Set ZC=rs.Fields("职称") Sum=0 Do While Not (14) rs.Edit Select Case ze Case Is="教授" rate=0.15 Case Is="副教授" rate=0.1 Case Else rate=0.05 End Select sum=sum+gz * rate gz=gz+gz * rate (15) rs.MoveNext Loop rs.Close db.Close Set rs=Nothing Set db=Nothing MsgBox"涨工资总计：" & sum End Sub