問題詳情
The tropical blue moon butterfly has developed a way of fighting back 26 parasitic bacteria. Six years ago, males accounted for 27 1% of the blue moonpopulation on two islands in the South Pacific. But 28 last year, the butterflieshad evolved a gene to keep the bacteria 29 and male numbers were up to about 40%of the population. Scientists believe the comeback is 30 “suppressor＂ genesthat control the Wolbachia bacteria that is 31 down from the mother and kills themale embryos 32 they hatch. “To my 33 , this is the fastest evolutionarychange that has ever been observed, “said Sylvain Charlat, 34 University CollegeLondon,UK, whose study 35 in the.
(A) know
(B) appearing
(C) before
(D) pass(AB) of (AC) passed (AD) just (BC) due(BD) by (CD) passing (ABC) knowledge (ABD) appears(ACD) in check (BCD) against (ABCD) due to
【題組】26
參考答案
答案：B,C,D
難度：困難0.352381
統計：A(18),B(57),C(51),D(51),E(1)
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