题目内容
（请给出正确答案）
A、To some degree
B、On some occasions
C、At some time
D、For some purposes
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Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： There is a strange area in the Atlantic Ocean called the Bermuda Triangle. People have been fascinated by the Bermuda Triangle for years, because of the mysterious disappearance of many ships and planes in the area. There is hardly any agreement about the cause of these disappearance. In fact, it is difficult to find any agreement about the boundaries of the area. Whereas most people argue that the triangle's northern most point is Bermuda, its western most point is Florida, and its eastern point is the coast of Africa, a few researchers prefer the northern point to be in the Boston area.
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A．Money.
B．Ships and planes.
C．Florida.
D．Trains and cars.
A．The nurse should talk about food with the patient each day to reorient the patient．
B．The nurse should read health magazines with the patient and point out how beautiful the bodies are in the online magazine
C．The nurse should discuss with the patient which feelings and thinking the patient has that are irrational or unrealistiC
D．The nurse should tell the patient that her thinking is crazy and she had better eat some french fries before she kills hersel
F．
Section B
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.
The gravitational pull of the earth and moon is important to us as we attempt to conquer more and more of outer space. Here's why.
As a rocket leaves the earth, the pull of the earth on it becomes less and less as the rocket roars out into space. If you imagine a line between the earth and the moon, there's a point somewhere along that line, nearer to the moon than to the earth, at which the gravitational pull of both the earth and the moon on an object is just about equal. An object placed on the moon side of that point would be drawn to the moon. An object placed on the earth side of that point would be drawn to the earth. Therefore, a rocket need be sent only to this "point of no return" in order to get it to the moon. The moon's gravity will pull it the rest of the way.
The return trip of the rocket to the earth is, in some ways, less of a problem. The earth's gravitational field reaches far closer to the moon than does the moon's to earth. Thus, it will be necessary to fire an earthbound rocket only a few thousand miles away from the moon to reach a point where the rocket will drift to earth under the earth's gravitational pull.
The problem of rocket travel is not so much concerned with getting the rocket into space as it is with guiding the rocket after it leaves the earth's surface. Remember that the moon is constantly circling the earth. A rocket fired at the moon and continuing in the direction in which it was fired would miss the moon by a wide: margin and. perhaps continue to drift out into space until "captured" in another planet's gravitational field. To reach the moon, a rocket must be tired toward the point where the moon will be when the rocket has traveled the: required distance. This requires precise calculations of the speed and direction of the rocket and of the speed and direction of the moon.
For a rocket to arrive at a point where the moon's gravity will pull it the rest of the way, it must reach a speed called the velocity of escape. This speed is about 25, 000 m/les (about 40,200 kilometers) per hour. At a speed less than this, a rocket will merely circle the earth in an orbit and eventually fall back to the earth.
This short passage is mainly about ______.
A．the rocket
B．the pull of the earth
C．the pull of the moon
D．the gravitational pull of the earth and moon
A．The nurse should talk about food with the patient each day to reorient the patient．
B．The nurse should read health magazines with the patient and point out how beautiful the bodies are in the online magazine
C．The nurse should discuss with the patient which feelings and thinking the patient has that are irrational or unrealistiC
D．The nurse should tell the patient that her thinking is crazy and she had better eat some french fries before she kills hersel
F．
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
The Catholic Church is changing in America at its most visible point: the parish church where believers pray, sing and clasp hands across pews to share the peace of God. Today there are fewer parishes and fewer priests than in 1990 and fewer of the nation's 65 million Catholics in those pews. And there's no sign of return.
Some blame the explosive 2002 clergy sexual abuse scandal and its financial price tag. But a study of 176 Roman Catholic dioceses shows no statistically significant link between the decline in priests and parishes and the $772 million the church has spent to date on dealing with the scandal.
Rather, the changes are driven by a constellation of factors:
-Catholics are moving from cities in the Northeast and Midwest to the suburbs, South and Southwest.
-For decades, so few men have become priests that one in five dioceses now can't put a priest in every parish.
-Mass attendance has fallen as each generation has become less religiously observant.
-Bishops—trained to bless, not to budget—lack the managerial skills to govern multimillion-dollar institutions.
All these trends had begun years before the scandal piled on financial pressures to cover settlements, legal costs, care and counseling for victims and abusers. The Archdiocese of Boston, epicenter of the crisis, sold chancery property to cover $85 million in settlements last year, and this year will close 67 churches and recast 16 others as new parishes or worship sites without a full-time priest. Archbishop Sean O'Malley has said the crisis and the reconfiguration plan are "in no way" related. He cites demographic shifts, the priest shortage and aging, crumbling buildings too costly to keep up. Fargo, N.D., which spent $821,000 on the abuse crisis, will close 23 parishes, but it's because the diocese is short of more than 50 priests for its 158 parishes, some with fewer than a dozen families attending Mass.
They know how this feels in Milwaukee. That archdiocese shuttered about one in five parishes from 1995 to 2003. The city consolidations "gave some people who had been driving back into the city from new homes in the suburbs a chance to say they had no loyalty to a new parish and begin going to one near their home", says Noreen Welte, director of parish planning for the Milwaukee Archdiocese. "It gave some people who already were mad at the church for one reason or another excuse to stop going altogether."
Which of the following reflects the change of Catholic Church？
A．Fewer prayers in the church.
B．Fewer pews in the parish.
C．Fewer Catholics in America.
D．Fewer signs in the peace of God.
A、Today many young people change their jobs or careers every few years. What do you think are the reasons for this？ Do you think the advantages outweigh its disadvantages？
B、Nowadays we are producing more and more rubbish. Why do you think this is happening？ What can governments do to help reduce the amount of rubbish produced？
C、Some young people are leaving the countryside to live in cities and towns, leaving only old people in the countryside. Why do think this is？ Do you think this is a positive or a negative development？
D、In ancient Rome, aesthetical beauty was considered one of the main points with which humans judged each other as people. Do you agree or disagree with this point of view？ What traits do you feel best judge a person’s quality？
听力原文： Most ants are hard workers and often work from six o'clock in the morning until ten o'clock at night. The work is divided among the worker ants so that each one has a certain amount to do. We do not know how they decide what each one is to do, for they do not talk, some people think ants follow each other by their sense of smell. Ants often live to be one year old, and some have been known to live six or seven years. One way they get their food is from plant lice, which we might call their cows. The ants milk these "cows" by tapping the lice gently until a drop of honey comes out. Then they eat the honey. Ants take very good care of these plant lice and often build a covering over them so that they will be protected from the rain.
(33)
A．One.
B．Few.
C．Several.
D．Many.
Assignment 6 - Outlier mining You are required to use outlier mining methods to detect the outliers with given data sets. In a section of a city road, several cameras are set to collect the plate of vehicles from 2017-06-09 to 2017-06-12, as well as the date and time when passing the start point and the finish point. Travel time is calculated later. Time serial is another form of transformation from start time. So each instance contains 8 attributes, including serial number, license plate number, date and time passing start/end point, time serial and travel time. There are totally 4977 instances. You need to finish the following tasks. Task: (1) Use statistic-based approach to detect the outliers of travel time. Calculate the mean value and the variance of travel time. Write out the confidence interval. Take time serial as X-axis and the travel time as Y-axis. Plot the scatter diagram and mark the outliers you have recognized. (2) Use distance-based approach to detect the outliers of travel time. An object o in data set D is defined as an outlier with parameters r and π described as DB(r,π), if a fraction of the objects in D lie at a distance less than r from o is less than π, o is an outlier. Let parameter r vary from 0.1 to 0.3 with the step of 0.1, and π vary from 30 to 90 with the step of 30, find the outliers and the number of the outliers. You can use the Euclidian distance. (3) Use density-based approach to detect the outliers of travel time. With different k (from 3 to 400 with the step of 5), the number of neighbors, calculate the LOF for each data point. Set 2.0 as a threshold for LOF and an object is labeled as an outlier if its LOF exceeds 2.0. Firstly, take k value as X-axis and the number of outliers as Y-axis. Plot the line chart. Secondly, calculate the LOF for each data point and give the top 4 outliers. Use k=350 and the Euclidian distance.
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