HSK 7-9 Free Unit preview
生物科学技术
Biotechnology
Discuss the application of biotechnology in agriculture, environmental protection and medicine.
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Question 1 / 3
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短文最后一段明确说明,试剂溅入眼睛或皮肤应立即用清水冲洗,并尽快就医。
Question 2 / 3
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短文介绍的应用包括培育新品种、生产生物肥料、组织培养繁殖种苗以及微生物技术保鲜,用工业废水灌溉农田不在其中,且与环保理念相违背。
Question 3 / 3
女:医生,最近需要接种疫苗吗? 男:是的。 男:疫苗的工作原理是让人体的免疫系统提前认识病毒或细菌,从而产生免疫物质。 女:那疫苗安全吗? 男:经过严格的检测和监管,合格疫苗是非常安全的。 男:它的副作用一般很轻微。 女:我明白了,预防比治疗更重要。 男:没错。 男:按时接种疫苗,可以有效预防许多传染病。
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医生说疫苗的工作原理是让免疫系统提前认识病毒或细菌,从而产生免疫物质,这是预防作用而非治疗作用。
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