問題詳情


(E) Penguins can perform amazing 40 . Emperor penguins, the largest species, mate in thecoldest environment of any bird species, at temperature down to -40 degrees Celsius. Not only41 they fight the cold, but the males then use their feet to hold their eggs for two months tokeep them warm. They don’t eat, or move from land; they just protect their eggs, 42 is one ofnature’s most amazing acts. Emperor penguins, like other penguin species, stay warm 43 theirwindproof and waterproof feathers and a thick layer of fat that 44 them from the intense cold.Penguins are an unusual product of evolution. Ridiculous on land, but agile in the water;winged but flightless; 45 by females but protected by males. The contradictions make them aweird but wonderful addition to the animal kingdom.
40.
(A) flippers
(B) virtues
(C) strips
(D) feats

參考答案

答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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