A.應(yīng)納稅額=當(dāng)期銷項稅額+當(dāng)期進項稅額 B.應(yīng)納稅額=當(dāng)期銷項稅額-當(dāng)期進項稅額 C.應(yīng)納稅額=當(dāng)期銷項稅額×當(dāng)期進項稅額 D.應(yīng)納稅額=當(dāng)期銷項稅額/當(dāng)期進項稅額