题目内容
视神经、视网膜、角膜的放射耐受量为
2021-12-10
A.小于等于4000cGy/4周
B.小于等于4500cGy/5周
C.小于等于5000cGy/S周
D.小于等于5500cGy/6周
E.小于等于6000cGy/6周
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