5. Tropical rainforests contain at least half of the Earth’s species. The incredible _______ of the rainforests means that most species have evolved to inhabit very specialized _______ in their environment.
(A) difference; houses
(B) diversity; niches
(C) story; kingdom
(D) variety; canopy
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統計: A(13), B(257), C(11), D(114), E(0) #87942
統計: A(13), B(257), C(11), D(114), E(0) #87942