ReadWriteQuiz
Chinese dictionary
n.period under observation
他的观察期从什么时候开始？
When did his observation period begin?
三组观察期均为24周。
The observation period of the three groups was 24 weeks.
他的观察期从什么时候开始？
When did his observation period begin?
三组观察期均为24周。
The observation period of the three groups was 24 weeks.