6. More than 80% of the world's staple food comes from _____.
(A) bryophytes
(B) monocots
(C) lycophytes
(D) eudicots
(E) gymnosperms
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統計: A(8), B(69), C(3), D(9), E(5) #3224787
統計: A(8), B(69), C(3), D(9), E(5) #3224787