virus是“病毒,病毒性感染”的意思,virus of Covid-19即指“新冠肺炎病毒”。 题干句子的意思是:新冠肺炎病毒首次出现于2019年。 根据句中的时间状语“in 2019”可知,该句应使用一般过去时,剧中谓语动词应使用其过去式形式。 选项A arose 是arise的过去式,符合题意,故该选项即为正确选项; 选项B arising 是ar...
Respiratory virus surveillance after the height of the COVID-19 pandemicEdwards, MeganJoffres, YayukJassem, AgathaPrystajecky, NatalieLopez, JimmyHosseini, RezaZou, CarlHana HuaBharmal, AamirSmith, AnyaBritish Columbia Medical Journal
百度试题 结果1 题目21. virus called COVID -19 has spread all over world since 2019. A. A; an B. An; the C. The; the D. The; a 相关知识点: 试题来源: 解析 C 反馈 收藏
Before eating, after gettinghome from the outside or touching animals,remember to wash our hands in time. The timecan't be too short, about 15 seconds.Take our temperature every day. Fever is a symbolof COVID-19. When we get a high temperature,call the hospital and go to the doctor ...
A virus(病毒) called COVID-19 is spreading(传播) fast how. Lots of people in the world get sick. People usually show symptoms(症状), such as(例如) runny nose, cough, breathlessness(呼吸困难) and fever. There are some things we can do to protect(保护) ourselves, family and friends:...
根据“Recently, a new virus (病毒) called COVID-19 is spreading (传播) fast in the world.”,可知近年来,COVID-19在世界范围内传播迅速,故选B。 (2)题详解: 句意:为什么我们看不到病毒?A它太小了。B它太干净了。C它太高了。根据“It’s very small—so small that we can’t see it.”,...
UK: Some people with COVID-19 were able to transmit the virus to others after the 10-day mark, at least in the early days of the pandemic, a new UK study shows. 英国:一些新2019冠状病毒疾病患者,至少在流感大流行初期,就可以将病毒传播给其他人,英国的一项新研究显示。
B A virus(病毒) called COVID-19 is spreading(传播) fast now. Lots of people in the world get sick. People usually show symptoms(症状), such as(例如) runny nose, cough, breathlessness(呼吸困难) and fever.There are some things we can do to protect(保护) ourselves, family and friends:...
解析 答案见上解析:考查一般过去时及其被动语态和主谓一致根 据 During the COVID-19 virus outbreak 可知, 此处 描述的是发生在过去的事,需用一般过去时;主语 people 为复数概念, 且与谓语动词 force 之间为动宾 关系,需用被动语态,故在forced前加were句意: 在新冠病毒爆发期间,许多人被迫待在家中 ...
1The COVID-19 virus is still spreading around the world. It hangs overall of us. But some good news about vaccines for COVID-19 is bringing uscloser to ending this terrible disease.On Dec. 8, 2020, in the UK a vaccine made by the US Pfizer and theGerman BioNTech came out. In the...