問題詳情

Even by the brutish standards of Tasmanian devils, Rosie, Harry, and Clyde haveled a lamentable life. A year ago, when the three were each the size of a sesameseed, they wriggled out of their mother’s birth canal and undulated their way toher pouch. There, each locked onto a teat and grew quickly. But within months, theirmother developed devil facial tumor disease—a mysterious malady that in the lastthree years has killed nearly half of all the world’s devils, marsupials that arefound only in Tasmania. Shortly after she died, the baby devils, grown to the sizeof tiny puppies, were found dangling from their mother’s pouch, starving to death.Rescued and reared by hand, Rosie, Harry, and Clyde recently joined six similarlyorphaned devils at the Launceston Lakes and Wildlife Park, all in strict quarantine.The fate of their exotic species—Sarcophilus harrisii—may lie in what happens tothese rambunctious youngsters in the next 12 to 18 months. “If they contract thedisease, devils may be headed for extinction in the wild,” said a wildlifebiologist. Right now, wildlife experts are struggling to comprehend the nature ofthe fast-moving epidemic. Moving at a rate of 10 to 16 kilometers a year, it is 100percent fatal. Only the west coast, isolated by mountain ranges inhospitable todevils, is disease free. Nearly half of the estimated 150,000 devils in Tasmania arenow dead.
47.What is the passage mainly about?
(A)A species of marsupial
(B)A species of sesame
(C)A species of wolf
(D)A species of plant

參考答案

答案：A
難度：困難0.3
統計：A(9),B(7),C(8),D(4),E(0)

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