问题
单项选择题
克服乏氧细胞放射抗拒性的措施，你认为在理论上下列不可行的是（）。
A.使用抗VEGF类药物
B.高压氧应用
C.乏氧细胞增敏剂
D.高氧和低氧联合应用
E.使用活血化瘀的中药
答案
参考答案：A
解析：在理论上要克服乏氧细胞的放射抗拒性，需要增加肿瘤组织的氧浓度或改善肿瘤组织的血供状况，本题中A选项不能达到类似效果。
搜题请搜索小程序“爱下问搜题”
克服乏氧细胞放射抗拒性的措施，你认为在理论上下列不可行的是（）。
A.使用抗VEGF类药物
B.高压氧应用
C.乏氧细胞增敏剂
D.高氧和低氧联合应用
E.使用活血化瘀的中药
参考答案：A
解析：在理论上要克服乏氧细胞的放射抗拒性，需要增加肿瘤组织的氧浓度或改善肿瘤组织的血供状况，本题中A选项不能达到类似效果。
Job stress has been known to cause heart problems in people who already have cardiovascular(心血管) disease. Now Finnish scientists have shown that 50 in healthy people the pressure of work can cause damage. High blood pressure, lack of 51 , smoking and being overweight 52 to heart disease—a 53 killer in many industrialized countries. But Mika Kivimaki, of the Finnish Institute of Occupational Health, and his colleagues, who studied the 54 histories of 812 healthy Finnish men and women in a metal industry company over 25 years, said job stress also plays an important role. Workers who had the highest job-related stress levels at the start of the study were more than twice as 55 to die of heart disease, 56 the study published in The British Medical Journal. Work stress 57 too much work as well as a lack of satisfaction and feeling undervalued and 58 . Many people work long hours but if the effort is 59 the stress is minimized. Kivimaki said job pressure is damaging when being overworked is 60 with little or no control, unfair supervision and few career opportunities. The British Heart Foundation said the results 61 earlier research showing that people in jobs with low control, such as manual workers, could be at greater 62 of heart disease than other employees. “It is 63 for people to try to minimize levels of stress at work and for employers to 64 people to have more control at work and to be rewarded for their success,” the foundation said in a statement.
|