问题 单项选择题

在排序过程中,比较次数与序列的初始位置无关的排序方法是

A.直接插人排序和快速排序

B.快速排序和归并排序

C.直接选择排序和归并排序

D.直接插入排序和归并排序

答案

参考答案:A

解析: 归并排序要求待排序文件已经部分排序,而其他的排序方法对排序文件的初始状态不做要求。

阅读理解

The quest for success always begins with a target. As Berra once said, "You got to be very careful if you don't know where you're going, because you might not get there."

Too many people wander through life like sleepwalkers. Each day they follow familiar routines, never asking, “What am I doing with my life?” and they don’t know what they’re doing because they lack goals.

Goal-setting is a focusing of the will to move in a certain direction. Begin with a clear conception of what you want. Write down your goals and date them—putting them into words clarifies them. Rather than concentrating on objects to acquire and possess, focus on fulfilling your desires to do, to produce, to contribute—goal-setting that yields the true sense of satisfaction we all need.

It’s important to visualize(想象)yourself accomplishing your goal. While losers visualize the penalties(不利)of failure, winners visualize the rewards of success. I’ve seen it among athletes, statistics contrasting air and highway safety, but it made no difference. I had read too many articles describing crash scenes and imagined these scenes vividly. I had programmed myself, without realizing it, to stay off planes.

Then one summer I had the opportunity to fly on a private plane with friends to a resort;I didn’t want to miss out on a great vacation. So I spent two weeks imagining a smooth flight on a beautiful sunny day and an easy landing.

When the day arrived, I was eager to go. To everyone’s surprise, I got on the plane and I loved every minute of it, and I still use the techniques I employed that day.

68.According to the passage, if you want to be successful, the first thing for you to do is _______.

A.find the right methods     B.be careful about everything

C.know your ability           D.have a clear goal

69.If you have a target, you will ________.

A.wander like a sleepwalker       B.know well what you are doing

C.do the same work every day    D.put it into words

70.The problem with the author before he overcame his fear of air travel is that ______.

A.he didn’t know air travel is safer than highway travel

B.he couldn’t imagine himself accomplishing his goal

C.he read too much about plane crashes and tried to avoid flying

D.he wanted to take a private plane instead of a public one

71.What would be the best title for this passage?

A.Define Your Coal                  B.Visualize Rewards of Success

C.Overcome the Fear of Air Travel    D.Sleepwalking Through Life

单项选择题