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Listening Quiz: Lựa Chọn Phương Pháp Tốt Nhất Cho Chất Ô Nhiễm Vết – Easy Level
Th11 20, 2025
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bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
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1.
What is the main topic of the conversation?
Comparing different ways to clean water pipes
Discussing how to store water samples safely
Choosing a method to detect trace contaminants in water
Planning a field trip to a water treatment plant
Explanation:
Anna and Paul discuss the best method for finding trace contaminants in water, focusing on mass spectrometry.
2.
Why does Anna recommend mass spectrometry?
It does not require any testing equipment
It is the cheapest method available
It is slower than other methods
It is very sensitive and can detect smaller amounts
Explanation:
Anna says mass spectrometry is very sensitive and can detect smaller amounts.
3.
What does Anna say about the speed of mass spectrometry testing?
It takes several days to finish
It is quite fast and gives results in a few hours
It cannot be used for quick testing
It only works after a week of preparation
Explanation:
Anna says the testing is quite fast and that they get results in a few hours.
4.
What can be inferred about Paul after the conversation?
He believes mass spectrometry is too inaccurate
He thinks chromatography is the only useful method
He is convinced by Anna’s recommendation
He wants to delay the project until next month
Explanation:
At the end, Paul says he will recommend mass spectrometry, which shows he accepts Anna’s suggestion.
5.
What concern does Paul ask about mass spectrometry?
Whether it works only in laboratories
Whether it needs to be shipped overseas
Whether it is better than chromatography
Whether it can clean the water directly
Explanation:
Paul asks if mass spectrometry is better than chromatography for this task.
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