題目細胞內cyclic AMP濃度升高時,下列那些酵素活性會增加?①glycogen synthase ②fructose-1,6-bisphosphatase ③phosphofructokinase-1 ④glycogen phosphorylase ⑤fructose-2,6-bisphosphataseA.①③④B.②③④C.②④⑤D.①②⑤官方答案C