technician a says a refrigerant identifier is only needed when the technician is unsure of the refrigerant used in an ac system. technician b says that some refrigerant identifiers can measure the amount of moisture in the refrigerant system to aid in diagnosis. who is  correct?  
a.  technician a   
b.  technician b   
c.  both technicians a and b   
d.  neither technicians a nor b

a a tool that provides information on how to apply to college - apex

answer:

i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!

answer:

ok i will i'm just bored

answer:

enjoy ur chat with ; -;