單項(xiàng)選擇題前列腺癌D1期,照射野應(yīng)當(dāng)是()

A.盆腔四野,縮野加量
B.盆腔四野
C.前后對(duì)穿兩野,縮野加量
D.前后對(duì)穿兩野
E.都不對(duì)