大全-I-4

4.     Television programming experts maintain that with each 1% increase in the prime-time ratings of a television station there is a 3.5% increase in the number of people who watch its evening news program. However, in the last ten years at Channel NTR, there was only one year of extremely high prime-time ratings and during that year, fewer people than ever watched Channel NTR’s evening news program.

Which of the following conclusions can properly be drawn from the statements above?

(A) When a news program has good ratings, the channel as a whole will have good ratings.

(B) The programming experts neglected to consider daytime news programs.

(C) The year of high ratings at NTR was a result of two hit shows which were subsequently canceled because of contractual problems.

(D) The ten-year period in question is not representative of normal viewing patterns.（E）

(E) Prime-time ratings are not the only factor affecting how many people watch an evening news program.

答案为什么不能是D? 很有可能中国这十年情况特殊呀

这十年的情况就算不具有代表性，但题目中强调的是其中一年的情况，而非10年，而且不具有代表性所产生的结论也不一定是题目中出现的情况

Question is need to draw the conlusion based on the information given

We were told that 1% increse in prime-time,3.5% amount in people who watch TV.

But one time ,this principle does not work. what's the problem?

The problem is some other facts has affect how many people would watch tv except increasing in  prime-time.

E is the correct answer 

Yeah! To base on the information given is the key to draw conclusion.