A case study on fumigants

科目：雅思听力Part：Part4考试日期：2023.6.3/2017.1.7/2016.12.17
题型：填空题10题题数：10题

本套真题为2023.6.3/2017.1.7/2016.12.17 雅思听力真题《A case study on fumigants》（Part4）， 共10题，题型包括填空题10题。配套AI逐题解析、同义替换与错因分析， 支持在线机考模式练习，适合冲刺雅思听力高分的考生备考使用。

文章预览

00:00:00,200In today's lecture, I'm gonna discuss a case study on fumigants. Fumigants are chemicals, usually gases, that destroy insects, bacteria, and other organisms. They're commonly used to protect stored food, but they can also be used in museums to prevent damage to paintings, furniture, and other historical objects. 00:00:20,810I'll begin by looking at some of the problems associated with traditional chemical fumigants. Then I'll describe a safer method that was tested on a museum object...

题目预览与解析（示例）

第39题（part4_fill）
These natural chemicals behave in a similar way to **39**_____ , as they destroy harmful organisms.
第31题（part4_fill）
**A case study on fumigants** **Problems with traditional fumigation** Some chemicals released during fumigation may damage the Earth's **31**_____ layer.
第33题（part4_fill）
To prevent dangerous gas from escaping, food can be placed inside a sealed **33**_____ .

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