write differences and similarities

Analyze 5 job posting on AEA website/Career Center

http://www.eval.org/p/cm/ld/fid=113

What are similarities and different among these job descriptions?

Choose 5 jobs and analyze them. please write them in numbers.

for example

1-Introduction 

2-Differences:

1-

2-

3-

4- 

5-

6-

7-

3-Similarities:

1-

2-

3-

4-

5-

6-

7-