Exercise 3 - Explanations
on a research study are things that limit research, or make research more difficult.
Which answers are examples of
Click on 3 correct answers.
This page requires FLASH
To install FLASH go to
You have finished the basic exercises for this word.
For advanced exercises for this word - click "next"
Click here to select a new word
Preview release – please
All rights reserved Copyright © The Open University of Israel