下列为含有B族维生素的辅酶,例外的是
A.细胞色素b
B.磷酸吡哆醛
C.NADH
D.四氢叶酸
E.硫胺素焦磷酸
参考答案:A
-- Have you seen ______pen? I left it here this morning
-- Is it ______black one? I think I saw it somewhere
A.a;the
B.the;the
C.a;a
D.the;a
若要完成(AX)×7/2运算,则在下列四条指令之后添加哪条指令 MOV BX,AX MOV CL,3 SAL AX,CL SUB AX,BX ______
A.ROR AX,1
B.SAL AX,1
C.SAR AX,1
D.DIV AX,2