48. According to the passage, how did animals cross the Mozambique Channel?
(A)through man-made bridges connecting Madagascar and the African
mainland
(B)through 15th-century smugglers
(C)through prehistoric land bridges
(D)through giant rafts composed of vegetation
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統計: A(6), B(3), C(8), D(109), E(0) #3121926
統計: A(6), B(3), C(8), D(109), E(0) #3121926