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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?
Planning a field trip to a water treatment plant
Discussing how to store water samples safely
Comparing different ways to clean water pipes
Choosing a method to detect trace contaminants in water
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 very sensitive and can detect smaller amounts
It is slower than other methods
It is the cheapest method available
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 is quite fast and gives results in a few hours
It takes several days to finish
It only works after a week of preparation
It cannot be used for quick testing
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 thinks chromatography is the only useful method
He wants to delay the project until next month
He believes mass spectrometry is too inaccurate
He is convinced by Anna’s recommendation
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 is better than chromatography
Whether it needs to be shipped overseas
Whether it can clean the water directly
Whether it works only in laboratories
Explanation:
Paul asks if mass spectrometry is better than chromatography for this task.
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