[单选题]
A gas is quickly compressed in an isolated environment. During the fjyz7b65 )pb thhhze jvm *ut,)6b 42levcj: va+/om8lqent, the gas exchanged no heat with its surroundings. This process q/c vo+ aj8m:lis
A. isothermal
B. isochoric
C. isobaric
D. adiabatic
