關於組織與最大劑量比（TMR）的定義，下列何者正確？
A(dose rate at $d_{max}$ /dose rate at depth) at SSD
B(dose rate at $d_{max}$ /dose rate in air) at SSD
C(dose rate at $\mathrm{d}_{\max} /$ dose rate at depth) at SAD
D(dose rate at depth/dose rate at $d_{max}$ ) at SAD正確答案
答案與詳解
