41 According to the passage, what is the major cause for the disappearance of many bees?
(A)parasites
(B)global warming
(C)lack of food supply
(D)pesticides
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統計: A(5), B(18), C(15), D(48), E(0) #1332542
統計: A(5), B(18), C(15), D(48), E(0) #1332542