题目

You often find somebody who works around you complaining all the time, don’t you? 【1】 About 70% of Americans say being around non-stop complainers sometimes has a bad influence on them. Luckily, here are 4 tips to help form positive patterns.1. Self-awarenessWhen a negative thought pops into your mind, immediately correct it. Instead of telling yourself “That’s a nice shirt, but I can’t afford it,” change the message to “That will look great with my black pants when I can afford it.” 【2】 Of course, everyone complains sometimes. But the less frequently you complain, the be用配方法解方程x2+8x+7=0，则配方正确的是A.（x+4）2=9B.（x-4）2=9C.（x-8）2=16D.（x+8）2=57