— ___ has 2019-COVID vaccine(疫苗) been in use?— Since the beginning of this year, I think. A. How far B. How soon C. How long D. How often 相关知识点: 试题来源: 解析 C 句意:——新型冠状病毒疫苗使用多久了? ——我想是从今年开始。A. How far多远,询问距离;B. How soon...
The effectiveness of the vaccine against COVID-19 has been(evaluate) by many organizations. 相关知识点: 试题来源: 解析 evaluate"评估",与vaccine之间是动宾关系,根据句中has been可知,要用现在完成时的被动语态。故填:evaluated。 许多组织已经对COVID-19疫苗的有效性进行了评估。反馈 收藏 ...
故填 ensure。have entered 解析:考查时态。句意:据世界卫生组织一位高级官员8月7日透露,目前已有6种新冠肺炎候选疫苗进入三期临床试验,其中3种来自中国。根据 so far可知时态是现在完成时,由主语是 six COVID-19 vaccine candidates 可知谓语动词要用 have entered。故填 have entered。
题目The COVID crisis has led many scientists to take up arms (or at least keyboards) to defend their companies and to be sure,science needs defenders these days.But in their passion to fight back against vaccine(疫苗) rejection and other forms of science denial(否定),some...
1China has an essential role in COVID vaccine(疫苗)The whole world is facing a terrible pandemic. COVID-19 may not be the most fatal virus of all time, but due to its extremely infectious nature it 1 (affect) the whole world. Lifestyles, habits, traditions and customs have changed due...
1China has an essential role in COVID vaccine(疫苗) The whole world is facing a terrible pandemic. COVID-19 may not be the most fatal virus of all time, but due to its extremely infectious nature it 1 (affect) the whole world. Lifestyles, habits, traditions and customs have changed due...
Covid-19: UK has highest vaccine confidence and Japan and South Korea the lowest, survey findsdoi:10.1136/bmj.n1439The UK population has the highest confidence in covid-19 vaccines and its health authorities, while Japan and South Korea have the lowest, a survey of 15 countries shows.1 ...
Vaccine efficacy has fallen from 75% at first to just over 50% among long term care facility residents, Oliver said. These were the first people vaccinated after the shots became available in December and January. "The data we have seen today has demonstrated that Covid vaccines continue to ...
Beijing also joined Covax, a vaccine alliance backed by the World Health Organization, which seeks to grant equal access to all participating countries when a vaccine is developed. The goal is to provide a lifeline to lower-income countries that would not have been able to afford these vaccine...
In March 2021, the vaccine programme was still in its early stages, and the NHS was on the front line fighting the virus. Despite improvements in the prognosis for patients infected with COVID-19 following the vaccination programme, the most recent statistics available at t...