A. 第1组 1. a person who welcomes visitors and answers phones 2. a medical field that uses instruments to operate on patients 3. a heart specialist 4. a person who prevents patients from feeling pain 5. a person who analyzes samples 6. the department that deals with the care of children 7. the department that studies and diagnoses diseases 8. situations in which someone's life is in danger

B. 第2组 A. emergencies B. anesthesiologist C. surgery D. lab technician E. receptionist F. cardiologist G. pathology H. pediatrics