Several @functions can execute multiple statements. Which one of the following initializes a variable and can increment in during the operation?（）

单项选择题jim,adominoprogrammer,wanttodeterminethenumberofworkingdaysinayear.Whichoneofthefollowingformulashouldheuse?（）

A. @days 
B. @holidays 
C. @wokdeddays 
D. @businessday

单项选择题Inthevideoform.theOrderDatefield(WhichshowsWhenthevideomaybeordered)iscalculatedbasedontheDatefield(Whichdisplaysthereleasedate).Theorderdateis30dayspriortothereleasedate.WhichonethefollowingformulaswillcalculatetheOrderDatevalue?（）

A.@Number(Date)-30       
B.@Adjust(Date;0;0;30;0;0;0) 
C.@Adjust(Date;0;0;-30;0;0;0) 
D.@If(Date!="";Date-30;@Failure(There is no current release date")) 

单项选择题whichoneofthefollowingstatementswouldleeincludeinanagenttolimitthedocumentsprocessedbytheagenttothoseforwhichthevalueofthetypefieldis action ?（）

A.FIELD Type :="action"     
B.SELECT Type ="action" 
C.SELECT Type :="action "      
D.@if (type="action";@success;@failure) 

单项选择题whichoneofthefollowingbestwherelayercanbeused?（）

A.form 
B.page 
C.subform 
D.all of the above

单项选择题Derekhascreatedaviewinthesales.nsfdb.Derekwantsthesalesvaluecolumnintheviewtobepunctuatedtodisplaytwodecimalplaces.whichoneofthefollowingshouldhedo?（）

A. use the @function @decimal in the column formula in the view 
B. select decimal on the numbers tab in the view properties box 
C. select decimal on the numbers tab in the column properties box
D. use the @function @decimal to format the value in the field on the form that will display in the view