——样品。 考查冠词。a一个,表泛指,用于读音以辅音音素开头的字母或单词前;an一个,表泛指,用于读音以元音音素开头的字母或单词前字母;the那个,表特指。第一空,泛指一个字母,s读音以元音音素开头,故第一空用an;第二空特指上文提到的那个字母,用定冠词the。故选C。
"The reasons for this are unclear," Lin says. "It could be the virus itself from a biological perspective. It also may reflect greater immunity that we have gained through prior infections and vaccines. So there's certainly the possibility that the proportion of people with long-haul symptoms...
Q: Is there a way to prevent long COVID? A: I think it's fair to say that the most protective thing you can do to not get long COVID is to make sure you do not get COVID-19, Guest says. The safest way to protect yourself and those you love from COVID-19 and long COVID-...
Is There a Cure for HIV? Antiretroviral therapy (ART)can treat and control infection with HIV, the virus that causes AIDS. People who take these medications can reduce the amount of the virus in their bodies so much that blood tests don't even show it's there. They can live long, heal...
句意:由于新型冠状病毒仍在快速传播,接种疫苗是非常必要的。考查连词辨析。before在……之前;since由于;although尽管;unless除非。根据“ the COVID-19 is still spreading rapidly, getting a vaccine(疫苗) is quite necessary”可知,“新型冠状病毒仍在快速传播”是接种疫苗的原因,用since引导原因状语从句,故选B。
(18)January 14: The NHC held a national teleconference, specifying arrangements for epidemic prevention and control in Hubei and Wuhan, and for emergency preparations and response across the country. The NHC cautioned that there was great uncertainty about the new disease, and that more research ...
进一步的症状学研究发现,Long COVID可表现出呼吸、心血管、神经系统、肾脏、内分泌、消化等多个系统的症状。 呼吸系统 英国相关研究数据显示,Long COVID患者中有36%存在呼吸短促,有26%出现肺损害的症状和体征,同时也有慢性咳嗽、肺活量下降的报道。其机制可能为:1. 新冠病毒(SAR...
If you have any of these, tell your doctor about it right away. Because the array of symptoms is so vast, it's possible that your condition might be mistaken for something besides long COVID. There's not a single test you can take to find out if you have long COVID. Your doctor ...
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。 A. before 在……以前,引导时间状语从句; B. since 由于,引导原因状语从句; C. although 尽管,引导让步状语从句; D. 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。结果...
[解答]As soon as一...就...;Since自从、由于;So that以便,getting a vaccine(疫苗) is quite necessary."...COVID﹣19仍在迅速传播。"可知,用Since引导原因状语从句。 故选:B。 [分析]由于COVID﹣19仍在迅速传播,所以接种疫苗是非常必要的。反馈 收藏 ...