These are the choices:
Vent the entire tank.
Check the tank pressure then reuse.
Recycle the HFC-134a before reuse using certified equipment.
Charge it directly into another A/C system.
The answer most likely is: Check the tank pressure then reuse.
Answer:
The contrast between anticipated and actual instances of language change is actually:
A: anticipated and actual instances of language change
A random and novel ways of directing future language changes
Answer B: random and novel ways of directing future language changes philosophical and psychological.
Explanation:
"c' is correct . Concerning here means 'about'
I think the first one was correct