حل تمرین 1 ص 68

2:29

15:03

19:38

12:56

9:17

32:56

15:41

7:55

13:17

17:20

16:37

6:25

9:54

5:43

5:53

3:45

3:20

2:29

28:54

16:39

30:27

7:54

8:23

10:08

14:12

14:24

19:01

49:44

21:55

7:23

44:51

2:59

20:37

4:27

10:00

9:59

5:49

6:41

7:33

8:05