GRE Reading Comprehension: ETS-GRE阅读ETS - FBQMTK77K43247IY7

The author's argument regarding the resistance of Africanized bees to Varroa jacobsoni would be most weakened if which of the following were true? A. The bees in Brazil were resistant before being Africanized. B. The number of bee colonies in North American increased dramatically whereas the number in Brazil remained unchanged. C. Mites found in European bees reproduce at a faster rate than mites of identical species found in the bees in Brazil. D. Africanized bees retain many of the characteristics of European bees. E. Bee colonies in Europe continue to produce greater quantities of honey than do those in Brazil.