Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

继续假设。如果上厕所前，实际体重65.50kg，体重秤显示65.45kg（在误差范围内）。上厕所后，实际体重减少0.2kg，变为65.30kg。按照误差范围，此时体重秤可能显示为65.35kg。