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【多选题】
关于磺胺类抗菌药物构效关系及作用机制的叙述,正确的说法为A.
磺胺类药物通过与PABA进行代谢拮抗，干扰细菌的正常生长，从而产生抑菌作用
B.
C.
氨基苯磺酰胺结构为必要基团，不管氨基和磺酰胺基相互处于邻位、间位还是对位，所生成的邻-氨基苯磺酰胺、间-氨基苯磺酰胺和对-氨基苯磺酰胺，在体内外均有抗菌活性
D.
N1取代的衍生物制菌作用均较磺胺为强，取代基多为五元或六元杂环，如磺胺甲噁唑
E.
磺胺类药物与磺胺增效剂合用，可增强抗菌作用，但仍是抑制细菌繁殖，无杀菌作用
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【简答题】The novel pneumonia virus outbreak originated in China in December, 2019 is declared by WHO as a _____________________________________________(国际关注的突发公共卫生事件)
【单选题】What’s the Novel Coronavirus Pneumonia?
A.
It’s a crown for the queen.
B.
It’s an epidemic disease.
C.
It’s a kind of toy.
D.
It’s a rotten food.
【单选题】China has adopted an open, transparent and responsible manner since the novel coronavirus pneumonia broke out, he said. Which of the following sentences has the same meaning of the word novel.
A.
This novel has been made into a film.
B.
Materials that undergo large elastic deformations can exhibit novel instabilities.
C.
This adaptation perfectly captures the spirit of Kurt Vonnegut's novel.
D.
The latter encodes a novel protein kinase with LIM domains and is strongly expressed in the brain.
【单选题】What are the symptoms of the novel coronavirus pneumonia?
A.
Throw up, vomit
B.
Fever, cough, short of breath
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