Question 30 Which traditional visual aids combine the advantages of posters and dry-erase boards?

Transparencies
Posters
Dry-erase boards
Handouts

32.Which traditional visual aids must be correctly placed upright before you use them?
Transparencies
Dry-erase boards
Handouts
Slides

30. transparencies.

you can write on them like dry erase boards and they are displayed on a wall like a poster. like visual or whatever

32. dry erase boards.
you have to usually mount them on a wall for the class to see before you use it.