GRE Text Completion: Maggoosh-GRE填空Maggoosh - A6T7QDKQRS20QEB6Y

When researchers follow the scientific method, the absence of (i)____________ proof by no means suggests a theory lacks validity. Indeed, no theory is (ii)____________: each can always be subject to further testing and scrutiny, and thus, by definition, remains (iii)____________. A. ineffable B. cherished C. equivocal D. sufficient E. porous F. suspect G. irrefutable H. unassailable I. provisional