6.3. The passage implies that if hive temperature had not returned to normal by the end of the study in question, a probable conclusion of the researchers would have been that
(A) up-regulation of temperature is a preventative measure against chalkbrood
(B) honeybees are incapable of purposely raising hive temperatures
(C) A. apis cannot be completely eradicated throughup-regulation of temperature along
(D) honeybee larvae have a mechanism to alert adult honeybees to the presenceof A. apis
(E) honeybee larvae may benefit from increased hive temperature even when there is no A.apis present
6.4. According to the passage, which of the following is true of chalk brood infection among honeybee larvae?
(A) Larvae in small colonies are more likely to pass the infection to adult honeybees than are larvae in large ones.
(B) Infection with chalk brood induces larvae to raise their hive’s temperature.
(C) The infection is more likely to affect larvae in winter than in spring.
(D) Larvae fail to develop symptoms of the disease when their brood –comb temperature remains within the normal range.
(E) Infected larvae exhibit visible symptoms of disease for a significant time before death.
答案：ACED
