哪些肿瘤在常规放射治疗技术时需要张口含瓶以保护周围相应正常组织()
A.鼻腔癌
B.鼻旁窦癌
C.口腔肿瘤如舌癌、口底癌等
D.脑瘤
E.腮腺肿瘤
参考答案:C, E
改错。
( ) 1. Nice to meeting you. _____________
A B C
( ) 2. He is a new boy on school. _____________
( ) 3. This is a glue. _____________
( ) 4. Where are my paper? _____________
( ) 5. It is Kims eraser. _____________
根据生物的分类,生物之间亲缘关系最远的等级是
A.界
B.门
C.科
D.种