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Difficulty: MediumIdentifying Antonym and Contrast Context Clues

Read the passage below. Based on the contrast context clue provided in the text, what word correctly completes the sentence?

Answer:Whereas previous navigational charts contained ambiguous depth markers that frequently confused the cutter's bridge crew during nighttime maneuvers, the updated digital display provided 【precise】 depth contours and bearings. This clarity allowed the helmsman to guide the vessel into port without hesitation or uncertainty.

Answer

precise (or an equivalent antonym of ambiguous such as clear, exact, accurate, or unambiguous)
The transitional conjunction 'Whereas' sets up a direct contrast between the old navigational charts and the updated digital display. Because the old markers were 'ambiguous' and caused confusion, the new display's contours must possess the opposite quality—namely, being 'precise', 'clear', or 'unambiguous'—which enabled safe transit without hesitation.

Step-by-Step Solution

1
Identify the contrast indicator and the contrasting quality described in the passage.
The transitional word 'Whereas' establishes an opposition between the 'ambiguous' markers of previous charts and the new display.
Contrast signal words indicate that the target descriptor in the second clause must have the opposite meaning of the descriptor in the first clause.
2
Determine the antonym needed to complete the sentence logically.
The antonym of 'ambiguous' (meaning unclear, vague, or doubtful) is 'precise', 'clear', or 'unambiguous', which is further corroborated by the mention of 'clarity' and navigation 'without hesitation'.
The blank must describe depth contours that eliminate confusion and provide exact guidance.

Key Concept

Identifying Antonym and Contrast Context Clues
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Identifying Antonym and Contrast Context Clues

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