PID
A. pelvic inflammatory disease
B. pelvic infection disorder
C. pelvic inflammation
D. pelvic inlet
PKU
A. phenylketonuria
B. phenyl ketone
C. phenylketonuremia
D. phenylketonuric
AD
Alzheimer’s disease
B. anno domini
C. attack damage
D. assistant director
SARI
A. 严重急性呼吸道感染
B. 急性呼吸窘迫综合征
C. 中东呼吸综合征
D. 新型冠状病毒肺炎