問題詳情

65 million years ago, dinosaurs suddenly became _46_, together with a large numberof other species. Many scientists believe that the cause was a large asteroid 47 into the Earth. According to this theory, the asteroid threw huge amounts of dust and water vapor into theatmosphere, 48 out the light of the sun, the vegetation died off, and the dinosaurs starved to death. Evidence for the theory came in 1992 49 scientists in Mexico uncovered an underground crater 175 kilometers wide, which turned out to be exactly 65 million years old. The crater was probably caused by an asteroid 10 km 50 hitting the Earth at thousands of miles an hour.
46.
(A) disappear
(B) extinct
(C) inanimate
(D) perish

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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