有四张正面分别标有数字－2，－1，1，2的不透明卡片，它们除数字不同外其余相同。现将它们背面朝上，洗匀后小李从中任取两张，将该卡片上的数字这和记为x，则小李得到的x值使分式$\frac{x^2-9}{x-3}$的值为0的概率是____ .

    Now more and more people in the world are getting fatter. This troubles them a lot. （1）Experts(专家) say that it has a lot to do with our eating habits.
    Our eating habits are very important for good health and a strong body. Most of us like eating sweets and ice cream better than vegetables and rice. Sweets and ice cream are not bad for us if we eat them at the end of a meal. （2）If we eat them before a meal, they may take away our appetite(食欲).
    It's important for us to eat our meal in the same period each day. When we feel worried or excited, we may not want to eat. A long time ago, in England, some judges(法官) often decided whether a man was telling the truth by giving him some dry bread. If the man could not swallow(吞) the bread, it meant that he wasn't telling the truth. Because when a man is worried about something, he will have trouble in swallowing anything dry, because he loses his appetite.

下列说法正确的是（    ） 

在生活中，我们经常会遇到一些令人不愉快的事情，应该如何解决呢?以下是网站www.fyv.com提供的几个问题及其解决办法，请你给予合理的配对。
Problems:                                     
____ Some people always smoke in public places.
____ The No. 16 bus is always late.  
____ Some people always drop litter everywhere in our neighborhood.    
____ Some students talk loudly in the library.    
____ My parents hope I stay at home and study all day, even at weekends.   
Solutions:

E. Call the bus company and ask for the better service.