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【单选题】

Color changes in chameleons (变色龙) seem to be caused by environmental temperature as well as by other external stimuli.

A.
have to
B.
appear to
C.
ought to
D.
used to
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题目标签:变色龙
参考答案:
参考解析:
.
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【单选题】变色龙的体色能随着环境的改变而改变自己的体色,这说明 [ ]

A.
生物适应环境
B.
生物依赖环境
C.
生物影响环境
D.
生物改变环境