早、中、晚三餐摄取的能量比例最好是( )
A:3:4:3
B:3:3:4
C:4:2:4
D:2:4:4
— My dream is to build university on the moon some day.
— It sounds like unusual dream. I wish you could realize it.
New Year's Day usually comes __________ February.
Can you____ ____ a story in ten minutes?
下列关于染色体、DNA、基因的叙述,不正确的是( )