My advice to Mr. Stewart is to think carefully before entering into a career in medicine, as this is a field which requires a lot of ________ and long working hours.

题目： My advice to Mr. Stewart is to think carefully before entering into a career in medicine, as this is a field which requires a lot of ________ and long working hours.

A、maintain
B、prestige
C、 whereby
D、nominate
E、inhibit
F、patriotic
G、pursuit
H、dedication