我觉得这道题很奇怪 诚恳希望大家

帮忙 Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds

The argument relies on which one of the following questionable assumptions

A.        Birds of different species do not generally have the same overall energy requirements as each other

B.        The nectar-eating bird does not sometimes also eat seeds

C.        The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds

D.       The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird

E.        The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives

C 但是取非后怎么就变成削弱了那？？？

希望大家办帮我

原文由总量推出时间，缺的是速度。答案C就是给出速度。