单项选择题
A. form action
B. view action
C. hotspot action
D. db action
单项选择题 johnhascreatedadatabaselibrary,librariansareresponsibleforaddingnewinformationtothedblibrary.whichoneofthefollowingminimumlevelofaccesshecangrantthelibrariansofthedblibrary?（）
单项选择题 lisaiswritingaformulatodeterminethenumberofelementsinalist.shewantstoensurethatavalueisreturned,evenifthevalueherfunctionisevaluatingturnsouttobeanullstring.whichoneofthefollowingcanshesotoaccomplishthis?（）
单项选择题 whenrobertcreatedaresponseform.hesetthe"formulasinheritvaluesfromselecteddocument"optionontheformproperties,thefieldnameonthereviewformisthesameasthefieldnameontheinheritingform,howevertheformdoesnotinheritanydata,why?（）