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Difficulty: MediumValidating Sentence Coherence and Pair Equivalence

While the lead paleontologist initially cautioned that the fragmented fossil remains were far too degraded to yield definitive conclusions, subsequent high-resolution tomographic scanning provided __________ evidence that settled the decades-long debate regarding the species' cranial morphology. Select the two answer choices that, when inserted into the sentence, produce completed sentences that are equivalent in meaning.

  1. irrefutableAnswer
  2. B
    ambiguous
  3. incontrovertibleAnswer
  4. D
    preliminary
  5. E
    tentative
  6. F
    compelling

Answer

The correct choices are 'irrefutable' and 'incontrovertible'. Both words complete the sentence to convey that the evidence was impossible to deny, resolving the ongoing debate.
The sentence contrasts early doubts about degraded fossils with subsequent imaging that settled a long-standing debate. The blank requires an adjective indicating that the evidence was conclusive beyond doubt. Both 'irrefutable' and 'incontrovertible' express this precise meaning and create sentences with equivalent semantic content.

Step-by-Step Solution

1
Analyze the sentence structure and context clues.
The concession signal 'While' establishes a contrast between the initial caution regarding degraded fossils and the subsequent findings that 'settled the decades-long debate'.
Identifying contrast signals establishes the tone and polarity required for the missing word.
2
Determine the required contextual meaning.
The blank requires an adjective meaning conclusive, indisputable, or beyond doubt.
Evidence that settles a long-standing debate must be decisive.
3
Evaluate choices for semantic fit and pair equivalence.
'Irrefutable' and 'incontrovertible' both mean impossible to refute or deny, completing the sentence logically and producing equivalent meanings.
Sentence Equivalence requires selecting two words that fit the sentence context and yield semantically identical completed sentences.

Key Concept

Validating Sentence Coherence and Pair Equivalence
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Topics

Validating Sentence Coherence and Pair Equivalence

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