[audioFiles]audio_eusm_0194(20106)[/audioFiles]A、Pollution of the environment.

游客2023-08-30 9

问题

选项 A、Pollution of the environment.
B、A new generation of pest killers.
C、Over-killing by hunters.
D、Destruction of their natural homes.

答案 D

解析

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【B1】[br]【B10】[audioFiles]audio_eusm_j01_084(20099)[/audioFiles]manychildren