【答案】B 【详解】 句意:由于COVID-19仍在迅速传播,接种疫苗是非常必要的。 考查连词辨析。before 在...以前, 引导时间状语从句;since 由于,引导原因状语从句; although 尽管,引导让步状语从句;unless 除非,引导条件状语从句。分析语境可知,前半 句是一个原因状语从句,空处表示“由于” 。 故选B。 反馈 收藏...
The COVID-19 virus is still spreading around the world. It hangs over all of us. But some good(1)n ews about vaccines(疫苗) for COVID-19 is bringing us closer to ending this terrible pandemic.China will (2)s tart to vaccinate high-risk(高风险) groups over the winter. This means ...
Long COVID的表现 据报道有31%-69%的COVID-19患者在感染恢复后出现Long COVID,其最常见的症状包括:疲劳、肌肉疼痛、心悸、认知功能障碍、呼吸困难、焦虑、胸痛和关节痛等。进一步的症状学研究发现,Long COVID可表现出呼吸、心血管、神经系统、肾脏、内分泌、消化等多个系统的...
“This emphasis on the high-risk population is true,” Schaffner said. “However, we still see occasional young, healthy people who get hit with COVID, who wind up in the emergency room and have to be admitted to the hospital. So just because you're completely healthy and young...
The Covid-19 epidemic is a major public health emergency. The virus has spread faster and wider than any other since the founding of the People’s Republic in 1949, and has proven to be the most difficult to contain. It is both a crisis and a major test for China. The Communist ...
The COVID-19 epidemic (新冠疫情) is still spreading rapidly throughout the world. Luckily, it is under control in Chin a with the efforts of our government an d all the people. However, we shoul d still be careful in our daily life. There’re some rules for us to follow.Get ...
【题目】请根据短文内容及首字母提示,填写所缺单词。The COVID-19 virus is still spreading around the world. It hangs over all of us. But some good n___81___ about vaccines for COVID-19 is bringing us closer to ending this temble pandemic.China will s 82 to vaccmate high-risk groups...
China is providing free vaccine aid to 53 countries around the world while overcoming its own difficulties, Foreign Ministry Spokesman Wang Wenbin said on Tuesday, noting that China was the first country pledging to make vaccines a global public good....
COVID-19 is here to stay: What nurses need to know about long COVIDdoi:10.51256/anj102404Gelinas, LilleeAmerican Nurse Journal
The Centers for Disease Control and Prevention is providing up-to-date information on COVID-19, and states, the District of Columbia and U.S. territories have specific information for their residents, including details about coronavirus testing. Below are links to the coronavirus information portals...