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想請問第18題🥺

The pink river dolphin, also known as the Amazon river dolphin or Boto, is one of only seven species of freshwater cetaceans. Amazon river dolphins are only distantly related to saltwater dolphins. They have 16. their surroundings with larger snouts with bristle hairs on the end, especially for the purpose of river-bottom feeding. Another thing that tells them apart from their ocean-dwelling ling relative is their 17. pink 19. 18. skin. Temperature and water quality can impact the color of Amazon River dolphins. The sun's rays make them lose their pink pigmentation. So the darker the water, the pinker In addition, emotions like surprise and happiness can make them pinker, similar to blushing in humans! The Amazon river dolphins are very smart. With a brain 40% larger than that of humans, Amazon pink dolphins are said to be the most intelligent of the river dolphins. The pink river dolphins are friendly and there are plenty of stories of river dolphins saving people when they were in the water. 20., they have been valued by the tribes in the Amazon area for thousands of years.ood and B16. (A) changed into D17. (A) domestic (C) disposed of (D) resulted inside quote (B) adapted to ando (B) diligent ifoxs (C) direct (D) distinctive AD 18. (A) they will be (B) will they be (C) they do (D) they belt bica A 19. (A) capacity mis 20. (A) However (B) position (B) Moreover (C) exercise (C) Therefore (D) situation (D) Otherwise

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