当医用加速器的X射线能量高于()时应在屏蔽设计中考虑中子防护?
A.4MV
B.6MV
C.8MV
D.10MV
E.16MV
参考答案:D
It was a wonderful trip. So, which city did you like better, Paris or Rome?
---(). There were good things and bad things about them.
A. It’s hard to say
B. I didn’t get it
C. You must be kidding
D. Couldn’t be better
患儿女,1岁。因咳嗽、发热1天就诊,查体:精神萎靡,体温40℃,双肺可闻少许湿啰音,心脏听诊无明显异常。WBC 18.4×109/L,Hb 11.4g/L。胸部X线片提示:双肺感染性病变,门诊按“肺部感染”予头孢类抗生素抗炎治疗,在输液过程中患儿突然出现抽搐,惊厥。
患儿惊厥最可能的原因是
A.药物中毒
B.高热惊厥
C.心脏病
D.贫血
E.窒息