8.使用SSD技術,若校正時SCD(source-to-calibration distance)為101.5 cm,SSD為100 cm,
治療時SSD為110 cm,則SSD factor為何?
(A)0.542
(B)0.826
(C)0.909
(D)1.100
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統計: A(15), B(501), C(207), D(189), E(0) #1058503
統計: A(15), B(501), C(207), D(189), E(0) #1058503