Penguins are warm-blooded animals but tend to live in very cold climates.
Question 1:
Penguins are warm-blooded animals but tend to live in very cold climates. However, they have two feather*^*coats as well as a layer of ....... (like whales do) under their skin called blubber to keep them warm.*^*
A.fish
B.figs
C.film
D.fat
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