2009年全国硕士研究生招生考试英语（一）试题Section I Use of EnglishDirections: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 us wonder just how smart humans are.1the fruit-fly experiments described by Carl Zimmer in theScience Times. Fruit flies who were taught to be smarter than the average fruit fly2to live shorter lives. This suggests that3bulbs burn longer, that there is a(n)
