Choose the closest meaning:
1. coincide
a) at the same place
b) at the same time
2. concurrent
a) happening before
b) happening after
c) happening at the same time
3. unify
a) become together
b) become different
4. manipulate
a) ignore
b) control
c) discover
5. motive
a) question
b) reason
6. restrict
a) do something again
b) stop or cut back
7. nuclear
a) basic unit
b) outside
8. refine
a) do something again
b) discover
c) process something
9. temporary
a) forever
b) just for a short time
10. extract
a) put in
b) take out
c) fix
11. specify
a) make small
b) ask about
c) give instruction
12. approximate
a) exact number
b) not the exact number
13. colleague
a) someone you work with
b) someone you don't like
c) people you hang out with
14. analogy
a) comparison
b) difference
15. ethnic
a) right or wrong
b) cultural group
16. integrate
a) put together
b) separate
17. incentive
a) information
b) reward
18. contribute
a) give
b) take
c) plan
19. random
a) logical order
b) no logical order
20. induce
a) stop
b) cause
1. coincide
a) at the same place
b) at the same time
2. concurrent
a) happening before
b) happening after
c) happening at the same time
3. unify
a) become together
b) become different
4. manipulate
a) ignore
b) control
c) discover
5. motive
a) question
b) reason
6. restrict
a) do something again
b) stop or cut back
7. nuclear
a) basic unit
b) outside
8. refine
a) do something again
b) discover
c) process something
9. temporary
a) forever
b) just for a short time
10. extract
a) put in
b) take out
c) fix
11. specify
a) make small
b) ask about
c) give instruction
12. approximate
a) exact number
b) not the exact number
13. colleague
a) someone you work with
b) someone you don't like
c) people you hang out with
14. analogy
a) comparison
b) difference
15. ethnic
a) right or wrong
b) cultural group
16. integrate
a) put together
b) separate
17. incentive
a) information
b) reward
18. contribute
a) give
b) take
c) plan
19. random
a) logical order
b) no logical order
20. induce
a) stop
b) cause