試題詳解

48. It can be inferred from information in the passage that the existence in alpine regions of Hawaii of a plant species that also grows in the southwestern United States would justify which of the following conclusions?
(A) There are ocean currents that flow from the southwestern United States to Hawaii.
(B) The plant species discovered in Hawaii must have traveled from the 第 9 頁，共 9 頁 southwestern United States only very recently.
(C) The plant species discovered in Hawaii reached there by attaching to the feathers of birds migrating from the southwestern United States.
(D) The ecology of the southwestern United States is similar in important respects to the ecology of alpine regions of Hawaii.