γ光子与原子的核外电子碰撞,将一部分能量传递给电子,使之脱离原子轨道成为自由电子,γ

题型:单项选择题 A1型题

问题:

γ光子与原子的核外电子碰撞,将一部分能量传递给电子,使之脱离原子轨道成为自由电子,γ光子本身能量降低,运行方向发生改变,称为()。

A.电离

B.光电效应

C.韧致辐射

D.康普顿效应

E.湮灭辐射

考点:核医学与技术(医学高级)核医学与技术综合复习题核医学与技术综合复习题题库
题型:单项选择题 A1型题
对话填空(阅读下面对话,掌握大意,并根据所给首字母的提示,在标有题号的右边横线上写出一个英语单词的完整正确形式,使对话通顺。共10小题;每小题1分,满分10分)
L: I’m terribly sorry to trouble you, but I’d like to ask you some questions.  
O: Please go (76)a________.                                         
L: I find English really difficult to learn. It’s (77)u_________ that I have worked
hard but have achieved so little.                   
O: In what way?
L: Remembering new words is rather difficult. I looked at the vocabulary but I couldn’t remember them. It is (78) o_______ that I have no
(79) g______ for English.           
O: I don’t think so. Things may not sound like what you say. You’d better try different (80)w_____ to remember them and try
to make it interesting. For example, you can write the words on a card in English on one side and Chinese on the (81)o_____.                          
L: And how I can (82)i_____ my reading ability?                      
O: Well, as(83)f_______ that, you should do a lot of reading. You know practice
makes perfect. If time(84)p_____, you can read novels written by some                  
famous(85)w_____ such as Mark Twain, Charles Dickens and so on.
L: Thank you. I’ll have a try.
O: Gook luck with your English study in the future.
 
76.__________
77.__________
78.__________
79.__________
80.__________
81.__________
82.__________
83.__________
84.__________
85._________
题型:单项选择题 A1型题

甲将与其有私仇的乙打昏在地后逃跑,此时丙路过,见乙不省人事,遂将其所戴手表、钱物偷走。本案中甲、丙分别构成何种犯罪( )

A.甲、丙构成共同犯罪

B.甲、丙构成共同故意伤害罪、盗窃罪

C.甲构成故意伤害罪,丙构成盗窃罪

D.甲构成故意伤害罪,丙无罪

题型:单项选择题 A1型题

我国统一的商品代码层次结构采用()数字,共分为四层。

A、4位

B、6位

C、8位

D、10位

题型:单项选择题 A1型题

下列哪项不属于早期食管癌的病理分型范畴()

A.隐伏型

B.溃疡型

C.糜烂型

D.斑块型

E. * * 型

题型:单项选择题 A1型题

为什么贝氏面瘫患者在评价其疗效时应持客观态度?

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