These animals are all used to their environment, , they have learned how to live successfully in their habitat．
A. however
B. for instance
C. what’s more
D. or rather
网友回答
A. however
B. for instance
C. what’s more
(答案→)D. or rather
解析： 短语辨析. A．无论如何 B．例如 C．而且;再说 D．倒不如说;更精确的说.句意:这些动物都习惯了他们的环境,更精确的说,他们已经学会了如何成功的生活在他们的栖息地.故选D.