软件按功能可以分为：应用软件、系统软件和支撑软件 (或工具软件 )。下面属于应用软件的是 ( )。
A、编译程序C
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Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
Itisnecessarythatthestudents____moreexcercisestodo.
_____regulartraininginnursing,shecouldhardlycopewiththeworkatfirst.
Youmustpayimport____oncertaingoodsbroughtintothiscountry.
_____atinthisway,thepresenteconomicsituationdoesn'tseemsogloomy.
