These Antique Surgical Operation Tools Were More Effective Than New Ones

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These Antique Surgical Operation Tools Were More Effective Than New Ones

"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.

ANTIQUE CIVIL WAR GEMRIG PHILA FIELD AMPUTATION SURGICAL MEDICAL SET ...

What Were Roman Surgical Tools Made Of at Mark Dunning blog