The_____ prepared the X-rays. ()
A: radiologist
B: pharmacist
A: radiologist
B: pharmacist
举一反三
- The ( )prepared the X-rays. A: radiologist B: pharmacist C: nurse D: obstetrician
- 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