体内合成胆固醇的主要原料是()
A.乙酰辅酶A
B.乙眦乙酰辅酶A
C.丙酰辅酶A
D.草酰乙酸
E.葡萄糖1
参考答案:A
People celebrate Chinese New Year ______ from house to house. [ ]
A. by go
B. in the way go
C. by going
D. on the way to go
母乳喂养是指()
A.出生3个月内采用纯母乳喂养
B.出生2~4个月内采用纯母乳喂养
C.出生4~6个月内采用纯母乳喂养
D.出生4~8个月内采用纯母乳喂养
E.出生6~8个月内采用纯母乳喂养