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Author Question: Remove and clean the filter on the oxygen concentrator weekly. Indicate whether the statement is ... (Read 81 times)

Pineappleeh

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on: Jul 16, 2018
Remove and clean the filter on the oxygen concentrator weekly.
 
 Indicate whether the statement is true or false

Question 2

Some microbes are helpful in maintaining health.
 
 Indicate whether the statement is true or false


zogaridan

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Reply #1 on: Jul 16, 2018
Answer to Question 1

True

Answer to Question 2

True


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