it is not clear whether they completely prevent infection with the virus, or remove the ability to transmit it to others. (One paper published in June, before any vaccines were available, estimated that more than a third of those infected with covid-19 display no symptoms but can still infe...
【详解】考查名词词义辨析。句意:新冠病毒疫苗用于增强身体对感染的抵抗力。 A. resolution决心;B. reservation预约;C. resistance阻力,抵抗力;D. separation分离。根据后文“to infection”指增强身体对感染的抵抗力,resistance符合语境。故选C。反馈 收藏
Vaccines(疫苗) against COVID-19 are about 90 percent effective at blocking coronavirus infections, studies suggest. Nearly 4,000 health care workers, first responders and firefighters in six states took part in the study led by CDC researchers. From December 14 through March 13, the workers subm...
Many people are getting the COVID-19 vaccines(疫苗) these days.But some are afraid of needles(针).What if we don't use them at all?Scientists around the world are working on new types of vaccines.They hope(1) B people get vaccinated more easily. Chinese scientists Chen Wei and her te...
【题目】Vaccines(疫苗) against COVID-19 are about 90 percent effective at blocking coronavirusinfections, studies suggest.Nearly 4,000 health care workers, firstresponders and firefighters in six states took part in thestudy led by CDC rescarchers. From December 14 through March 13, the workers ...
B[2022·原创]Vaccines(疫苗) are used to stop people from gettingthe COVID-19 virus. China is giving free vaccines to allChinese people. You may want to know how the vaccineswork. Is it OK for you to get one? Can people of all agesget vaccinated? Here are the answers.The vaccines Ch...
【题目】Covid-19 vaccines are starting to roll out in several countries, a momentous breakthrough that hopefully signals a light at the endof this dark pandemic. For Katalin Karik6, the moment is particularly special.Kariko has spent decades of her career researching the therapeutic(治疗的)...
Vaccine developers who have already reported promising phase III trial results against COVID-19 estimate that, between them, they can make sufficient doses for more than one-third of the world’s population by the end of 2021. But many people in low-income countries might have to wait until...
根据It takes a few weeks or the body to build the ability to fight the COVID-19 after injection.Sometimes the vaccines might not work well in the body.So it's best to keep wearing face masks in public and wash your hands often.注射后,身体需要几周时间来培养对抗COVID...
What are the similarities and differences between Chinese and Western vaccines? How did China's vaccines help other countries combat COVID-19? What is the current vaccination situation in China? To find out, tune in to CGTN Dialogue.RELATED STORIES Netanyahu: We are moving ...