A.+→
B.→+
C.+→
D.→+
答案:D
Do you want a friend to you could tell everything?
A.who
B.whom
C.which
D.that
下列哪种物质是三大营养物质的共同中间代谢物?()
A.丙酮酸
B.乙酰CoA
C.ATP
D.乙酰乙酸
E.以上都不是