单项选择题 When we stereotype people, we use a less mature from of thinking (not unlike the immature thinking of a very young child) that makes simplistic and categorical impressions of others. ______about the depth and breadth of people—their history, interest, values, strengths and true character—we categorize them as jocks, geeks or freaks.

单项选择题 ______at the outset, ______ instead of shifting thing about may be pheromones released when they reach committee size.

单项选择题 A rogue loose called a hacker could take control of the entire system by implanting his own instructions in the software and then he could program the computer to erase any sign______.