12. Which of the following sex determination systems is for bees and ants?
(A) The X-Y system
(B) The Z-W system
(C) The X-0 system
(D) The haplo-diploid system

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統計： A(0), B(0), C(0), D(2), E(0) #3222889

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1. 題目解析 這道題目問的是蜜蜂和螞蟻...
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