英语考研真题答案【篇一:-考研英语真题、答案及详解[精编版]】 class=txt>section i use of english directions:read the following text
choose the best word(s) for each numbered blank and mark [a], [b], [c] or [d] on answer sheet 1
(10 points) research on animal intelligence always makes me wonder just how smart humans are
the fruit-fly experiments described in carl zimmer‘s piece in the science times on tuesday
fruit flies who were taught to be smarter than the average fruit fly to live shorter lives
this suggests that bulbs burn longer, that there is an in not being too terrifically bright
intelligence, it out, is a high-priced option
it takes more upkeep, burns more fuel and is slow the starting line because it depends on learning—a gradual — instead of instinct
plenty of other species are able to learn, and one