A particular strain of coronaviruses, called COVID-19, developed into a pandemic in 2019 and 2020. Coronaviruses are a family of viruses that cause respiratory infections in mammals and birds.Answer and Explanation: The coronavirus is a positive-sense RNA virus with an envelope. Viruses are ...
What If COVID-19 Never Disappears?sdhdfy 立即播放 打开App,流畅又高清100+个相关视频 更多61 27 1:00:48 App 【毕毕233】这是我的战争3 6.1万 -- 5:38 App 5岁男孩经常发烧咳嗽,送进医院发现左肺离奇失踪。 99 -- 0:45 App 北卡罗来纳自然科学博物馆 蝴蝶馆 2297 36 6:53 App 【360°VR...
——它很可怕。它是我从来没有见过的非常严重的疾病。考查冠词。本题第一句中特指COVID-19这种病毒,故用定冠词the;根据第二句句意,可知此处表示“一种”,即一种从未见过的疾病,表示泛指,故用不定冠词,且much是辅音音素开头的词,故用a。故选D。
百度试题 结果1 题目()---COVID-19 in Chinese?---It's“新型冠状病毒肺炎” A What B. What's C. How D. How's 相关知识点: 试题来源: 解析 B 反馈 收藏
Strong, healthy teeth help you chew all kinds of foods that help you grow. They help you speak clearly. That's why it's necessary to take great care of your teeth. The following suggestions help you have healthy teeth for life. One is to brush your teeth at least twice a day, more...
However, with the new strains, "we're seeing that the prominence of some of the symptoms is a little bit different." Here are virus trends and symptoms to keep in mind. Next:Respiratory 2/15 Credit Respiratory Shortness of breath is a key COVID-19 symptom, and dry cough is another ...
To control the spread of COVID-19, President Joe Biden previously said businesses with 100 or more employees would need to require COVID-19 vaccination or have workers get tested weekly for the virus. The rule was to take effect Jan. 4, affecting about 84 million workers na...
百度试题 结果1 题目【多选题】What's the symptom of COVID-19? A. headache B. cough C. have a fever D. stomachache 相关知识点: 试题来源: 解析 headache; cough; have a fever 反馈 收藏
113.-Boys and girls,what do you want to know about COVID-19?-I wonder A.where did the virus come from B.when the disease has happened C.what we can do to protect ourselves D.why has the disease spread so fast13.-Boys and girls, what do you want to know about COVID-19? -I ...
What Is Pneumonia? Pneumonia is an inflammation of the lung tissue. It’s caused by a number of viral infections, such as the influenza (flu) virus or SARS-CoV-2 – the culprit in COVID-19. Bacteria and certain types of fungus can also give rise to pneumonia. With pneumonia, the lung...