These Affordable Testing Kits Identify Hidden Allergens In Your Food

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These Affordable Testing Kits Identify Hidden Allergens In Your Food

"those / these" are determiners and are used before nouns to refer to a particular group of things / people, e.g. these people / those rules / those buildings. Update: 题主问的是What are those? 然后他.

63 14 Food Allergens Images, Stock Photos & Vectors | Shutterstock

Allergens testing | Allergens laboratory | Allergy food testing | Food ...