Examlex
How have U.S.imports and exports, as a fraction of GDP, changed from 1970 to the present?
Concrete Meaning
A description or term that denotes specific, tangible qualities or conditions, easily understood without ambiguity.
Empirically Measure
To quantify or measure based on observation or experience rather than theory or pure logic.
Logical Statements
Propositions that convey reasoning and can be analyzed as true or false based on logic.
Systems
Organized sets of interrelated elements or components that function together as a whole to achieve a particular goal or handle specific tasks.
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