Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require A: rather than burning calories to generate it B: rather than the generation of body heat by burning calories C: and not from generating it by burning calories D: instead of by burning calories for generating it E: instead of body heat generated by burning calories
我选A，答案选E. | 
