Recently a Beijing father sent in a question at an Internet forum (论坛) asking what PK mean

Recently a Beijing father sent in a question at an Internet forum (论坛) asking what PK meant.
My family has been watching the 'Super Girl' singing petition TV program. My little daughter asked me what 'PK' meant, but I had no idea, explained the puzzled father.
To a lot of Chinese young people who have been playing games online, it is impossible not to know this term. In such Internet games, PK is short for Player Kill, in which two players fight until one ends the life of the other.
In the case of the Super Girl singing petition, PK was used to refer to the stage where two singers have to pete with each other for only one chance to go up in petition ranking.
Like this father, Chinese teachers at high schools have also been finding their students' positions using Internet jargons which are difficult to understand. A high school teacher from Tianjin asked her students to write positions with simple language, but they came up with a lot of Internet jargons that she didn't understand.
My 'GG' came back this summer from college. He told me I've grown up to be a 'PLMM'. I loved to 'FB' with him together; he always took me to the 'KPM', went one position. GG means Ge Ge (Chinese pinyin for brother). PLMM refers to Piao Liang Mei Mei (beautiful girl). FB means Fu Bai (corruption). KPM is short for KFC, Pizza Hut and McDonald's.
Some specialists wele Internet jargons as a new development in language.
If you do not even know what a Kong Long (dinosaur, referring to an ugly looking female) or a Qing Wa (frog, referring to an ugly looking male) is, you will possibly be regarded as a Cai Niao!
45. By writing the article, the writer tries to       .
A. explain some Internet language          B. suggest mon Internet language
C. laugh at the Beijing father               D. draw our attention to Internet language
46. What does the writer think about the term PK?
A. Fathers can't possibly know it.          B. The daughter should understand it.
C. Online game players may know it.       D. Super Girl shouldn't have used it.
47. The examples of the Beijing father and the Tianjin teacher are used to show that Internet jargons      .
A. are used not only online                   B. can be understood very well
C. are weled by all the people          D. cause trouble to our mother tongue
48. The underlined word jargons means      in Chinese.
A. 行话               B. 粗口              C. 歌词               D. 趋势45---48   DCAA