46. The author mentions twenty percent in the final paragraph to indicate that ______.
(A) eagles are twenty percent bigger than most birds
(B) twenty percent of all nests include foundation branches
(C) the nests of eagles are twenty percent of larger than those of other birds
(D) birds can carry twenty percent of their own weight
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統計: A(4), B(3), C(13), D(96), E(0) #1874605
統計: A(4), B(3), C(13), D(96), E(0) #1874605