问题 单项选择题 A1型题

正确使用放射性药物的原则不包括()。

A.在决定是否给患者使用放射性药物进行诊断和治疗时,首先做正当性判断

B.同时有多种治疗用放射性药物时,选择对病灶辐射剂量小者

C.诊断检查时,尽可能降低使用放射性的放射性活度

D.采用恶性疾病患者可放宽放射性药物使用限制

E.使用必要的保护和促排措施,减少不必要的照射

答案

参考答案:B

解析:同时使用多种治疗用放射性药物时,选择对病灶部位辐射吸收剂量大,而全身重要器官辐射剂量小的药物。

阅读理解

阅读理解

Dear Mom,

     I need some things for school. Can you bring them to my school?  I need a notebook, two pencils, an

eraser and ruler. I need my CDs and video tape, too. The CDs are on the desk and the video tape is in

the bookcase.

Thanks.

                                                                                                                                                      Jim

Dear Jane,

     Your brother needs some things for school. They're in the red bag. He needs his CDs and video tape,

too. The CDs are on the desk. The video tape in the drawer of his bed. It isn't in the bookcase. Please

take them to his schooL

Thanks,

                                                                                                                                                    Mom

1. Jane is Jim's ______.                                                                                                                   

A. cousin                

B. daughter                    

C. sister

2. Jim needs ______.

A. a notebook and a red bag

B. an eraser, a ruler and a bag

C. two pencils and an eraser

3. _________are mentioned(提到) in the notes.              

A. Two boys              

B. A boy and a girl            

C. Two girls

4. ______takes the things to school.

A. Jane                

B. Jim                        

C. Jane's friend

5. The video tape is_______.

A. on the desk          

B. in the bookcase              

C. in the drawer

问答题