, they require a host cell), thus viruses need to elude the host immune defense to infect its cells in order to reproduce and survive. [54]. The chemokine/chemokine receptor-related immune defenses are the main obstacles to be by-passed by viruses. Some chemokines play a direct anti-viral...
The flu is believed___ by viruses that like to reproduce in the cells inside the human nose and throat. A. causing B. being caused C. to be caused D. to have caused相关知识点: 试题来源: 解析 C解析:思路分析:本题考查非谓语动词用法。“名词+be+believed/said/reported+不定式”相当于“It'...
The flu is believed ___ by viruses that like to reproduce in the cells inside the human nose and throat. A. to be caused B. to have caused C. being caused D. causing 相关知识点: 试题来源: 解析 【答案】 A 【解析】 试题分析:句意:流感被认为是由在人类鼻腔和喉腔细胞内繁殖的病毒...
Viruses are the most abundant biological entities on Earth and play a significant role in the evolution of many organisms and ecosystems. In pathogenic protozoa, the presence of viruses has been linked to an increased risk of treatment failure and severe clinical outcome. Here, we studied the mol...
15.The flu is believed ___ by viruses that like to reproduce in the cells inside the human nose and throat.( ) A.to be causedB.to have causedC.being causedD.causing 试题答案 在线课程 分析人们相信流感是由在人类鼻腔和喉腔细胞内繁殖的病毒引起的. 解答答案...
人们相信流感是由在人类鼻腔和喉腔细胞内繁殖的病毒引起的. 本题考点:不定式的被动式 考点点评: 本句可以变换成It is believed/said/reported that the flu is caused by viruses that like to reproduce in the cells inside the human nose and throat. 解析看不懂?免费查看同类题视频解析查看解答 ...
to be caused 4The flu is believed ___by viruses that like to reproduce in the cells inside the human nose and throat. [ ] A. causing B. being caused C. to be caused D. to have caused 5The flu is believed ___ by viruses that like to reproduce in thecells inside the human ...
to be caused 3The flu is believed ___ byviruses that like to reproduce in the cells inside the human nose and throat. A. causing B. being caused C. to have caused D. to be caused 4The flu is believed ___by viruses that like to reproduce in the cells inside the human nose...
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party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material...