X-rays can penetrate ( ).
A: wood
B: glass
C: lead
D: platinum
A: wood
B: glass
C: lead
D: platinum
举一反三
- X-rays and gamma rays can be used to detect and treat cancer ______.
- 以下属于直接电离辐射的是（） A: X-rays B: γ-rays C: β-rays D: neutrons
- The experiment long proved that X-rays cannot______lead. A: provoke B: penetrate C: plunge D: perceive
- 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
- If you ______ bring sunlight______ dry wood with a glass, it will start burning.