Question
20 to 20 are based on this passage
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Question 20
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
我的答案： 无