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对革兰阳性菌、革兰阴性菌、厌氧菌均有强大抗菌活性的药物是E．

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A．At least once a month.B．At least twice a month.C．At least once a year.D．At least twi

At least once a month.
B. At least twice a month.
C. At least once a year.
D. At least twice a year.

A．Pay the bills right away.B．Read the magazines very quickly.C．Sort the articles into

A. Pay the bills right away.
B. Read the magazines very quickly.
C. Sort the articles into categories for later reference.
D. Stop buying magazines which you don't have time to read.

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Why are so many people unhappy in their jobs？ There are two primary reasons. First, some people are convinced that earning a living is wasting time that they could spend enjoying themselves or uncovering their true talents.
If this is the case with you, recall your last long vacation. Was it two weeks of complete enjoyment？ More likely it was a week and a half of fun in the sun, with another half a week of "Boy, I can't wait to get back to work." If you didn't feel such vacation blues, then imagine taking a leave of absence. You could use it to work on a novel, enroll in classes or just sit around watching TV. At the end of three months, in all likelihood, your self-esteem would be at an all-time low. While all work and no play is not good, all play and no Work is disastrous. We need to feel we are accomplishing something. We also need some form. of order in our lives.
The second and perhaps more prevalent reason for people not to like their work is that they feel trapped. Once you've been at a company for five years and have a spouse, a mortgage and a child, you often feel you have very little choice about jumping ship if things aren't turning out as you'd planned. A steady paycheck can be the biggest manacle of all. People resent having to do something because they have no other choice.
If you find yourself resenting your job because you can't afford to quit, it may be time to prepare what one career counselor humorously calls a "cyanide capsule." He recalls spy movies in which the secret agent has such a capsule hidden somewhere on his body. If he's captured and tortured unbearably, he has an option. And having an option gives him the strength to hold on a little longer in the hope that the situation may change.
Rather than cyanide, your option takes the form. of an up-to-date resume. You might also take a weekly glance through the help-wanted section, and make some visits to industry functions where low-key networking can take place. You're not giving up on your current job. Rather, you are providing yourself with an option. If things get unbearable at work, you could jump ship. Being in this position can do wonders for your attitude. It allows you to enjoy your work since, in reality, you are there only because you want to be.
At the core of adopting a positive attitude to your workplace is, above all, assuming responsibility for your own situation. Most people feel controlled by their environment, but they really aren't. They have to learn to manage that environment so they can get from it what they need.
The first main reason for many people's unhappiness in their jobs rises from their conviction that ______.

A. working is like killing their true talents
B. working at a job is just wasting their time
C. working is not the enjoyment they are after
D. working is the least enjoyable way of spending time

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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： Human beings have used tools for a very long time. In some parts of the world you can still find tools that people used more than two million years ago. They made these tools by hitting one stone against another. In this way they broke off pieces from one of the stones. These chips of stone were usually sharp on one side. People used them for cutting meat and skin from dead animals, and also for making other tools out of wood. Human beings needed to use tools because they did net have sharp teeth like other meat-eating animals, such as lions and tigers. Tools helped people to get food more easily.
Working with tools also helped to develop human intelligence. The human brain grew bigger, and human beings began to invent more and more tools and machines. The stone chip was one of the first tools that people used, and perhaps it is the most important. Some scientists say that it was the key to the success of mankind.
Since 1960 a new kind of tool has appeared. This is the silicon chip—a little chip of silicon crystal. It is smaller than a finger-nail, but it can store more than a million bits of information. It is an electronic brain. Every year these chips get cleverer, hut their size gets smaller, and their cost gets less. They are used in watches, calculators and intelligent machines that we can use in many ways.
In the future we will not need to work with tools in the old way. Machines will do everything for us. They will even talk and play games with us. People will have plenty of spare time.
(27)

A. They made them by knives.
B. They found adequate stones.
C. They used bones of animals.
D. They made tools by hitting stone against stone,

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