Visual acuity improves gradually and is emmetropia at ( )
A: 6 months old
B: 3 years old
C: 4 years old
D: 5 years old
A: 6 months old
B: 3 years old
C: 4 years old
D: 5 years old
举一反三
- The appropriate age for unilateral cleft lip repair is ( ) A: one to two months old B: three to six months old C: one to two years old D: three to six years old
- 4. The little boy is _________. A: four years old B: five years old C: six years old D: seven years old
- The old man is very healthy. I think he will live______. A: to be 100 years old B: 100 years old C: at 100 years old D: in 100 years old
- The woman's daughter is ______. A: four years old B: eight years old C: nine years old
- Which period is the best period for children to develop their behavior habits? A: 2-5 years old B: 2-6 years old C: 3-6 years old D: 3-5 years old