lisaiswritingaformulatodeterminethenumberofelementsinalist.shewantstoensurethatavalueisreturned,evenifthevalueherfunctionisevaluatingturnsouttobeanullstring.whichoneofthefollowingcanshesotoaccomplishthis?（）A.useadefauleformulaof1B.use@elementsandadd1tothetotalC.usethe@countfunctioninsteadof@elementsD.use@texttotimetoensurethatallstringsarteconvertedtodate-timevalues
lisaiswritingaformulatodeterminethenumberofelementsinalist.shewantstoensurethatavalueisreturned,evenifthevalueherfunctionisevaluatingturnsouttobeanullstring.whichoneofthefollowingcanshesotoaccomplishthis?（）
A.useadefauleformulaof1
B.use@elementsandadd1tothetotal
C.usethe@countfunctioninsteadof@elements
D.use@texttotimetoensurethatallstringsarteconvertedtodate-timevalues
相关考题：
At which of the following times should the administrator refer to the HCL?() A. Prior to purchasing hardwareB. Before installationC. When installing driversD. After installation
通常来说,计算机中的文件是不能存储在()。 A.内存中B.硬盘上C.软盘上/CD-ROMD.U盘上