以下属于直接电离辐射的是（）
A: X-rays
B: γ-rays
C: β-rays
D: neutrons
A: X-rays
B: γ-rays
C: β-rays
D: neutrons
举一反三
- In the secondary structure of roots, xylem rays and phloem rays belong to ( ). A: Secondary rays B: Vascular rays C: Pith rays
- X-rays and gamma rays can be used to detect and treat cancer ______.
- X-rays are also called Rontgen rays _____ the discoverer who first put them to use. A: in case of B: in view of C: in place of D: in honor of
- The anti-UV mutation of microorganisms must be induced by ultraviolet rays
- Ultraviolet rays from the Sun can cause which of the following?