- Day old commercial strain Cherry Valley meat ducks ( n =690) were randomly allocated into five groups for a six week feeding trial.
把 690羽 1日龄的商品代樱桃谷肉鸭随机分成 5个组,每组 3个重复。
- I was laid up for six weeks with a very serious illness.
- His second putt holed him out for a six .
- I used to get up a six in the morning.
- Terry has been going out with Sharon for six weeks.