解析 答案见上46. have 【详解】句意:如果我们家的老人感染了新冠肺炎,我们应该做什么?由if引导的条件状语从句时态“主 将从现"规则可知,从句中使用一般现在时,主语是the old“老人”,由于“the+形容词"表示一类人,属于集 合名词,谓语动词用复数,故使用动词原形。故填have。
The Covid pandemic(新冠肺炎疫情)has meant lots of changes. If you are one of the lucky ones, the worst change you have experienced is more time in front of a screen. 1 Here are some excellent tips to help keep your eyes healthy. Take a break regularly. Many of us have spent a la...
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据Retraction Watch网站统计,COVID-19论文撤稿已经多达253篇,这一数字还在不断上涨中。 The Lancet主编Richard Horton一针见血地指出这些COVID-19论文“有一部分是没有参考价值的,比如预印本论文”(Some of the material that’s been...
How long do COVID-19 symptoms last if I'm vaccinated? Unfortunately, it's impossible to know how long a breakthrough case will present symptoms, as each case is unique and your personal health history may influence the length (and severity) of your recovery. But experts have eagerly documen...
Test 1词数:218建议用时:5 minutes The outbreak of the COVID-19 is unfortunate. If you have been in contact with people who were staying in high-risk areas and now you feel sick with fever, cough, or difficulty breathing, don't panic. 1Seek medical advice-Call ahead before you go to...
If people around you have had a fever recently, it may not be COVID-19 (新冠肺炎). According to Chin a Daily, many more people in Chin a have got seasonal flu (流感). Influenz a A (甲流) is spreading across the country.People who have got influenz a A may have a cough, a ...
After reading this article, you will gain the following knowledge: 1. Why does the COVID-19 spread so rapidly? 2. General mortality rate of novel coronavirus pneumonia and the reason for high mortality rate in some countries. 3. How effective are the epidemic control policies in various count...
Covid-19 and long term conditions: what if you have cancer, diabetes, or chronic kidney disease?doi:10.1136/bmj.m1174Andy ExtanceThe BMJ
I think my child has long COVID, what should I do? It's important to seekmedical attentionif COVID-related symptoms such asfatiguepersist for more than four weeks. A review with your GP or pediatrician is a good place to start if you have concerns for your child. ...