單項選擇題
A.0100 1010 B.1000 1010 C.1100 1010
A.0100 0111 B.0101 0100 C.0100 0110 D.0101 010
A.將被減數(shù)加到減數(shù)中 B.從被減數(shù)中減去減數(shù) C.補數(shù)的相加 D.從減數(shù)中減去被減數(shù)