languages
问题（）languages enable nonprogrammer to use certain easily understood commands to search and
（）languagesenablenonprogrammertousecertaineasilyunderstoodcommandstosearchandgeneraterep
问题Many computer languages provide a mechanism to call（）provided by libraries such as in .dl
Manycomputerlanguagesprovideamechanismtocall（）providedbylibrariessuchasin.dlls.A.instruc