The ( )prepared the X-rays.
A: radiologist
B: pharmacist
C: nurse
D: obstetrician
A: radiologist
B: pharmacist
C: nurse
D: obstetrician
举一反三
- The_____ prepared the X-rays. () A: radiologist B: pharmacist
- The ________________ has prepared the X-rays. A: adiologist B: pharmacist
- In the secondary structure of roots, xylem rays and phloem rays belong to ( ). A: Secondary rays B: Vascular rays C: Pith rays
- radiologist
- 以下属于直接电离辐射的是（） A: X-rays B: γ-rays C: β-rays D: neutrons