第20题: [单项选择]全身照射必须对剂量进行监测控制,一般采用()进行监测最方便 A. 热释光剂量仪 B. 化学剂量仪 C. 胶片剂量仪 D. 半导体剂量仪 E. 指形电离室 参考答案:D 答案解析:全身照射必须对剂量进行监测控制,采用半导体剂量仪方便,准确。
第21题: [单项选择]Miss Green thought ______. [A] it was all fight for her students to do the same as she did [B] it was wrong for her students to leave the classroom [C] her students were kind to leave so many recorders 参考答案:A 答案解析:[考点] 细节题
[解析] 从文中最后一段最后一句可知,格林小姐认为她做的事情,她的学生也可以做。