脂肪酸的生物合成()
A.不需要乙酰CoA
B.中间产物是丙二酸单酰CoA
C.以NADH为还原剂
D.在线粒体内进行
E.最终产物为十碳以下脂肪酸
参考答案:B
After studying in America for seven years, Lily’s brother ______ his job as a doctor in Japan.
A.took up
B.took over
C.took in
D.took on
汽油机化油器有主供油系统及()系统。
A.超速
B.加浓
C.减速
D.加速
E.起动