【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 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 ...
For 2021, there's only one issue that will matter for higher education: COVID. The pandemic is impacting every aspect of higher education, including technology, curriculum, learning, grades, COVID testing, campus safety, mental health, enrollment, mergers, closures, layoffs, and fundraising.doi:...
“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...
Symptoms of mild COVID-19 infection have shifted this season, and now are more akin to those of allergies and the common cold, doctors say.
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 ...
【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...
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...
The coronavirus pandemic has caused the United States and other nations around the world to rush into remote learning. This sudden shift will have a sizable impact on teaching and learning long after the COVID-19 crisis ends, says Prof. Randal C. Picker, a leading legal scholar at the Unive...
The ongoing COVID-19 crisis has altered how, when, and where we shop and what we buy. Digital has become more important than ever, brand loyalty has been shaken, and spending levels and are still below precrisis levels. During a McKinsey Live webinar, ...