A-A+
What are the possible causes of colony—collaps
问题详情
What are the possible causes of colony—collapse disorder given by the scientists?
A.Worsening environment.
B.Disease and chemicals.
C.Dwindling number of flowers around.
D.Changes in genes’ structures. 请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:B
第四的开头是Itcouldbethatdiseaseiscausingthedisappearance0fthebees.第五段的开头是Anothercauseofcolony-collapsedisordermaybecertainchemicalsthat…,这是科学家给出的两个可能造成这种现象的原因。