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B | 若考试应疫情防控要求被调整，请以各省级承办机构及所在学校通知为准。一、开考时间及科目1. 笔试考试时间（12月10日）上午：英语四级下午：英语六级2. 口试考试时间（11月19~20日）11月19日：英语四级口语考试11月20日：英语六级口语考试二、报名方式请考生按所在学校规定时间登录CET全国网上报名系统（cet-bm.neea.edu.cn）完成资格审核、笔试报名缴费及口试报名缴费。    Breakthrough new research could significantly increase supply of organs for people with rarer blood types waiting for a transplant, reported The Guardian.,A team of scientists from the University of Cambridge have successfully altered the blood type of three donor kidneys. By flushing blood infused with a special enzyme through a human kidney the scientists removed the blood type markers lining the blood vessels of the organ.,The procedure required using a device that is connected with a donor’s kidney to pass oxygenated blood through it - a normothermic perfusion machine. As a result, the organ was converted to type O, considered the universal donor.,Blood Group Compatible,As the blood type of a donor must be compatible with the recipient’s, the new development could increase the supply of kidneys available for transplant.,A kidney from someone with blood type A cannot be transplanted to someone with blood type B, or visa versa. In such a case, the receiving body’s immune system would reject the new organ, interpreting the different blood type as foreign.,So changing the blood type to the universal O would mean the donor organ could be used for people with any blood type.,“Our confidence was really boosted after we applied the enzyme to a piece of human kidney tissue and saw very quickly that the antigens were removed. After this, we knew that the process is feasible, and we just had to scale up the project to apply the enzyme to full-size human kidneys,” Serena MacMillan, a PhD student at the University of Cambridge, said.,Scientists involved in the research, funded by charity Kidney Research UK and due to be published in the British Journal of Surgery, clarified that the outcome might have particular implications for minority ethnic groups.,Science & TechGood News for ABs: Scientists Can Now Change People's Blood Type21 February, 16:34 GMT,Some blood groups such as O Rh positive and B Rh positive are more prevalent among black, Asian and minority ethnic communities. To complicate matters further, some rare blood types are only found within the black, Asian and minority ethnic communities,This typically places them at a disadvantage, as they struggle to find a match. With low donation rates from these populations, stressed the researchers, sometimes such patients wait for as long as over a year for a compatible donor. They cited figures from 2020-21 showing that just over 9% of total organ donations in the UK came from black and minority ethnic donors. On the other hand, black and minority ethnic patients make up 33% of the kidney transplant waiting list.,“It’s very exciting to think about how this could potentially impact so many lives,” added Serena MacMillan.,The “potentially gamechanging” research was applauded by Dr Aisling McMahon, the executive director of research at Kidney Research UK.,The scientists will now test the reintroduction of other blood types and observe how the novel approach in clinical settings.。

C | 三、成绩报告单成绩发布10个工作日后，考生可登录中国教育考试网（www.neea.edu.cn）查看并下载电子成绩报告单，电子成绩报告单与纸质成绩报告单同等效力。纸质成绩报告单依申请发放，考生可在报名期间或成绩发布后规定时间内登录CET报名网站（cet-bm.neea.edu.cn）自主选择是否需要纸质成绩报告单，选择纸质的考生应按考点规定时间及地点免费领取，成绩发布半年后未领取的视为自动放弃，不再补发。目前，中国教育考试网（www.neea.edu.cn）已开通2005年6月及以后历次考试成绩报告单（小语种科目为证书）查询服务，考生可登录查询，并可根据实际情况自助办理纸质成绩证明。（总台央视记者 潘虹旭）