______the climate affects the future sustainable agricultural development? ______a variety of species are on the decrease?

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问题 ______the climate affects the future sustainable agricultural development?
______a variety of species are on the decrease?

选项 A、 
B、 
C、 
D、 

答案B

解析 在BOOK 2中一开始就提到:...and global biodiversity is being lost...,即全球生物多样性正在丧失。由常识稍加推理,生物多样性指的就是生物种类,因此丧失多样性就是在说生物种类数量正在减少,与题句相符,因此选B。
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