|
The distance of distinct vision is _______cm. |
|||||||
|
(a) |
20 |
(b) |
25 |
(c) |
30 |
(d) |
35 |
|
The distance of distinct vision is _______cm. |
|||||||
|
(a) |
20 |
(b) |
25 |
(c) |
30 |
(d) |
35 |