与化学位移现象或技术无关的是()A、MR波谱分析。  B、化学位移伪影。  C、分子

题型:单项选择题

问题:

与化学位移现象或技术无关的是()

A、MR波谱分析。 

B、化学位移伪影。 

C、分子环境不同产生共振频率差异。 

D、CHESS法得到纯脂肪图像。 

E、弥散加权像。 

考点:磁共振成像MRI医师上岗证考试磁共振成像MRI医师综合练习磁共振成像MRI医师综合练习题库
题型:单项选择题

以下对麻醉的论述,正确的是()。

A.麻醉的机制完全明确

B.麻醉药的作用是可逆的

C.吸入麻醉药的特点是可控性差

D.静脉麻醉药大部分以原型排出体外

E.BIS是目前判断麻醉深度的唯一指标

题型:单项选择题

During the summer of 2006, I started reading books

in English, mostly stories. I would learn a lot of new      1._______

words from these books, but I had terribly problems      2._______

memorizing them. I had to look up to the same word      3._______

many times, for which was quite troublesome. I realized   4._______

I do need a way to remember all this vocabulary. It was    5._______

a great achievement for myself. I started writing down     6._______

words from books that I read. I would come back from         7._______

school, and then sit for an hour and two. I wrote down        8._______

new words and added it to my collection. By the end            9._______

of last year,my collection has grown to 3,000 words.         10._______

题型:单项选择题

()不随时间而变化的电流叫直流电,直流电通过的线路叫直流电路。

A、最大值

B、最小值

C、平均值

D、大小和方向

题型:单项选择题

结脉与促脉的主要区别在于()。

A.脉位的浮沉

B.脉力的强弱

C.脉形的长短

D.脉率的快慢

E.脉律的齐否

题型:单项选择题

国内差旅人员应当严格按规定(),费用由所在单位承担。

A、乘坐交通工具

B、住宿

C、参加娱乐活动

D、就餐

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