单项选择题
which one of the following types of actions can be used on unopened doc?（）
A. form action
B. view action
C. hotspot action
D. db action
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johnhascreatedadatabaselibrary,librariansareresponsibleforaddingnewinformationtothedblibrary.whichoneofthefollowingminimumlevelofaccesshecangrantthelibrariansofthedblibrary?（）
A. reader
B. author
C. manager
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lisaiswritingaformulatodeterminethenumberofelementsinalist.shewantstoensurethatavalueisreturned,evenifthevalueherfunctionisevaluatingturnsouttobeanullstring.whichoneofthefollowingcanshesotoaccomplishthis?（）
A.use a defaule formula of 1
B.use @elements and add 1 to the total
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D.use @texttotime to ensure that all strings arte converted to date-time values -
单项选择题
whenrobertcreatedaresponseform.hesetthe"formulasinheritvaluesfromselecteddocument"optionontheformproperties,thefieldnameonthereviewformisthesameasthefieldnameontheinheritingform,howevertheformdoesnotinheritanydata,why?（）
A.he failed to specify the form type
B.the inheriting form is not a response form
C.he specified the same field names on both forms
D.he failed to provide inheritance formulas for each field
