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  3. What can T cells do according to the news? [originaltext]Recent studies show tha

What can T cells do according to the news? [originaltext]Recent studies show tha

游客2024-08-13  60
问题 What can T cells do according to the news?
Recent studies show that some recovered patients who tested negative for coronavirus antibodies developed T cells in their immune systems.The reaction is believed to be the result of their COVID-19 infection.The studies are small and have yet to be confirmed by outside experts.However, some scientists now say that people who show few signs of sickness from the new coronavirus, or show no signs at all，may be actually killing off the infection with their T cells.The findings add to the evidence that an effective COVID-19 vaccine will need to push T cells to work in addition to producing antibodies.
选项 A、They can ruin human beings’ health.
B、They are helpful in fighting coronavirus.
C、They can weaken people’s immune system.
D、They are central lo disease prevention.
答案 B
解析 根据新闻定位句可知,一些科学家现在表示，那些很少表现出感染新冠病毒的迹象，或者根本没有表现出感染新冠病毒的迹象的人,实际上可能正在用他们的T细胞杀死感染。研究结果进一步证明,有效的COVID-19疫苗除了产生抗体外，还需要推动T细胞发挥作用。也就是说,T细胞有利于对抗冠状病毒。故选B。
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