GRE Reading Comprehension: Maggoosh-GRE阅读Maggoosh - 72DGR9FS97_7DRC7M

The passage suggests that reptiles and amphibians are able to A. perform an activity at suboptimal temperatures B. avoid excessive costs when performing an activity C. limit the costs of an activity by resting frequently D. maintain a body temperature irrespective of the environment E. avoid predation by resting during the night