問題詳情

四、Matching (10%)A) isolated
(B)interfereC) intermix
(D)whatE) evolvedA
(B)whereAC) withA
(D)byUp to about 250 million years ago the world had just one huge super-continent called Pangaea. Animals were able to move and 42. with one another. About 200 million years ago this super-continent broke up into two continents: Laurasia and Gondwana. About 60 million years ago Gondwana broke up into 43. later become South America, Africa, Antartica, India and Australia. Since then Australia has been 44. from the rest of the world by vast oceans. The animals there no longer had contact 45. animals from other parts of the world. They 46. separately. As a result, about 95% of Australia's mammals and 94% of its frogs are found nowhere else in the world. Australia has lots of very unusual animals.
42

參考答案

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

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