A.Ctrl+空格B.Shift+空格C.Ctrl+ShiftD.Alt+Shift
A.計(jì)算機(jī)不做減法運(yùn)算 B.計(jì)算機(jī)中的數(shù)值轉(zhuǎn)換成反碼再運(yùn)算 C.計(jì)算機(jī)只能處理數(shù)值 D.計(jì)算機(jī)將數(shù)值轉(zhuǎn)換成原碼再計(jì)算
A.-128~127 B.-127~128 C.-127~127 D.-128~128