单选题For companies, the threat of drive-by hacking seems set to grow as software programs assisting hackers proliferate on the Internet.

单选题When all the people had assembled, the king, surrounded by his court, (21) a signal. Then a door beneath him opened, and the accused man stepped (22) into the arena. Directly opposite him were two doors, exactly (23) and side by side. It was the duty and the privilege of the (24) on trial to walk directly to these (25) and open one of them. He (26) open either door he pleased; he was subject to no (27) or influence. If he opened the one, there came out of it a hungry tiger, the (28) and most cruel that could be found, which (29) sprang upon him and tore him to pieces as a punishment for his guilt. (30) , if the accused person opened the other door, out of it came a (31) lady, and to this lady he was immediately married, as a reward of his innocence. This was the (32) method of administering justice. Its perfect fairness is obvious. The criminal could (33) know out of which door would come the lady; he opened either he pleased, without having the slightest (34) whether, in the next instant, he was to be devoured or married. So the accused person was instantly (35) if guilty, and, if innocent, he was rewarded on the spot.

单选题Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C, or D. Want a glimpse of the future of health care? Take a look at the way the various networks of people involved in patient care are being connected to one another, and how this new connectivity is being exploited to deliver medicine to the patient-no matter where he or she may be. Online doctors offering advice based on standardized symptoms are the most obvious example. Increasingly, however, remote diagnosis (telemedicine) will be based on real physiological data from the actual patient. A group from the university of Kentucky has shown that by using an off-the shelf (现成的) PDA (personal data assistance) such as a Palm Pilot plus a mobile phone, it is perfectly feasible to transmit a patient's vital signs over the telephone. With this kind of equipment in a first-aid kit (急救包), the cry asking whether there was a doctor in the house could well be a thing of the past. Other medical technology groups are working on applying telemedicine to rural care. And at least one team wants to use telemedicine as a tool for disaster response-especially after earthquakes. Overall, the trend is towards providing global access to medical data and expertise. But there is one problem. Bandwidth is the limiting factor for transmitting complex medical images around the world-CT scans being one of the biggest bandwidth consumers. Communications satellites may be able to cope with the short-term needs during disasters such as earthquakes, wars or famines. But medicine is looking towards both the second-generation internet and third-generation mobile phones for the future of distributed medical intelligence. Doctors have met to discuss computer-based tools for medical diagnosis, training and telemedicine. With the falling price of broadband communications, the new technologies should usher in (迎来) an era when telemedicine and the sharing of medical information, expert opinion and diagnosis are common.

单选题The studies cited by the National Eating Disorders Association are made among

单选题A: I"ve called you a hundred times today. B: ______. I was busy.

单选题{{B}}D{{/B}} One of the qualities that most people admire in others is the willingness to admit one's mistakes. It is extremely hard sometimes to say a simple thing like "I was wrong about that," and it is even harder to say, "I was wrong, and you were right about that." I had an experience recently with someone admitting to me that he had made a mistake fifteen years ago. He told me he had been the manager of a certain store in the neighborhood where I grew up; and he asked me if I remembered the egg cartons (in many countries, eggs are sold by the dozen and are put in cartons). Then he related an incident(event, matter)and I began to remember unclearly the incident he was describing. I was about eight years old at the time. I went into the store with my mother to do some shopping. On that particular day, I must have found my way to the food department where the incident took place. There must have been a special sale on eggs that day because there were lots of eggs in dozen and half-dozen cartons. The cartons were put three or four feet high. I must have stopped in front of the piles of egg cartons. Just then a woman came by pushing her shopping cart and knocked off the cartons. For some reason, I decided it was up to me to put the eggs back together, so I went to work. The manager heard the noise and came rushing over to see what had happened. When he appeared, I was on my knees looking at some of the cartons to see if any of the eggs were broken, but to him it looked as though I was the one who just did it. He severely reprimanded me and wanted me to pay for any broken eggs. I tried to explain, but it did no good. Even though I quickly forgot all about the incident, it is plain that the manager did not.

单选题He is expected Lo make a speech this afternoon, ______?

单选题Rubidium, potassium and carbon are three common elements used to date the history of Earth. The rates of radioactive decay of these elements are absolutely regular when averaged out over a period of time; nothing is known to change them. To be useful as clocks, the elements have to be fairly common in natural minerals, unstable but decay slowly over millions of years to form recognizable "daughter" products which are preserved minerals. For example, an atom of radioactive rubidium decays to form an atom of strontium (another element) by converting a neutron in its nucleus to a proton and releasing an electron, generating energy in the process. The radiogenic daughter products of the decay—in this case strontium atoms—diffuse away and are lost above a certain very high temperature. So by measuring the exact proportions of rubidium and strontium atoms that are present in a mineral, researchers can work out how long it has been since the mineral cooled below that critical "blocking" temperature. The main problems with this dating method are the difficulty in finding minerals containing rubidium, the accuracy with which the proportions of rubidium and strontium are measured, and the fact that the method gives only the date when the mineral last cooled below the blocking temperature. Because the blocking temperature is very high, the method is used, mainly for recrystallized (igneous or metamorphic) rocks, not for sediments—rubidium-bearing minerals in sediments simply record the age of cooling of the rocks which were eroded to form the sediments, not the age of deposition of the sediments themselves. Potassium decays to form (a gas) which is sometimes lost from its host mineral by escaping through pores. Although potassium-argon dating is therefore rather unreliable, it can sometimes be useful in dating sedimentary rocks because potassium is common in some minerals which form in sediments at low temperatures. Assuming no argon has escaped, the potassium-argon date records the age of the sediments themselves. Carbon dating is mainly used in archaeology. Most carbon atoms (carbon-12) are stable and do not change over time. However, cosmic radiation bombarding the upper atmospheres is constantly interacting with nitrogen in the atmosphere to create an unstable form of carbon, carbon-14.

单选题Some of the concerns surrounding Turkey's application to join the European Union, to be voted on by the EU's Council of Ministers on December 17th, are economic — in particular, the country's relative poverty. Its GDP per head is less than a third of the average for the 15 pre-2004 members of the EU. But it is not far off that of one of the ten new members which joined on May 1st 2004(Latvia), and it is much the same as those of two countries, Bulgaria and Romania, which this week concluded accession talks with the EU that could make them full members on January 1st 2007. Furthermore, the country's recent economic progress has been, according to Donald Johnston, the secretary-general of the OECD, " stunning". GDP in the second quarter of the year was 13. 4% higher than a year earlier, a rate of growth that no EU country comes close to matching. Turkey's inflation rate has just fallen into single figures for the first time since 1972, and this week the country reached agreement with the IMF on a new three-year, $ 10 billion economic programme that will, according to the IMF's managing director, Rodrigo Rato, "help Turkey... reduce inflation toward European levels, and enhance the economy's resilience". Resilience has not historically been the country's economic strong point. As recently as 2001, GDP fell by over 7% . It fell by more than 5% in 1994, and by just under 5% in 1999. Indeed, throughout the 1990s growth oscillated like an electrocardiogram recording a violent heart attack. This irregularity has been one of the main reasons(along with red tape and corruption)why the country has failed dismally to attract much-needed foreign direct investment. Its stock of such investment(as a percentage of GDP)is lower now than it was in the 1980s, and annual inflows have scarcely ever reached $ 1 billion(whereas Ireland attracted over $ 25 billion in 2003, as did Brazil in every year from 1998 to 2000). One deterrent to foreign investors is due to disappear on January 1st 2005. On that day, Turkey will take away the right of virtually every one of its citizens to call themselves a millionaire. Six noughts will be removed from the face value of the lira; one unit of the local currency will henceforth be worth what lm are now—ie, about 0. 53euro($ 0. 70). Goods will have to be priced in both the new and old lira for the whole of the year, but foreign bankers and investors can begin to look forward to a time in Turkey when they will no longer have to juggle mentally with indeterminate strings of zeros.

单选题Statuses are marvelous human inventions that enable us to get along with one another and to determine where we "fit" in society. As we go about our everyday lives, we mentally attempt to place people in terms of their statuses. For example, we must judge whether the person in the library is a reader or a librarian, whether the telephone caller is a friend or a salesman, whether the unfamiliar person on our property is thief or a meter reader, and so on. The statuses we assume often vary with the people we encounter, and change throughout life. Most of us can, at very high speed, assume the statuses that various situations require. Much of social interaction consists of identifying and selecting among appropriate statuses and allowing other people to assume their statuses in relation to us. This means that we fit our actions to those of other people based on a constant mental process of appraisal and interpretation. Although some of us find the task more difficult than others, most of us perform it rather effortlessly. A status has been compared to ready-made clothes. Within certain limits, the buyer can choose style and fabric. But an American is not free to choose the costume of a Chinese peasant or that of a Hindu prince. We must choose from among the clothing presented by our society. Furthermore, our choice is limited to a size that will fit, as well as by our pocketbook. Having made a choice within these limits we can have certain alterations made, but apart from minor adjustments, we tend to be limited to what the stores have on their racks. Statuses too come ready made, and the range of choice among them is limited.

单选题According to paragraph 3, some workers have been killed by harmful pollutants in that

单选题The consumer______in recent years has led to an explosion of shopping center development in big cities like Beijing, Shanghai and Canton.(厦门大学2012年试题)

单选题The ______ of his profession do not permit him to do that.

单选题 So what is depression? Depression is often more about anger turned{{U}} (1) {{/U}}than it is about sadness. But it's usually{{U}} (2) {{/U}}as sadness. Depression can{{U}} (3) {{/U}}at all ages, from childhood to old age, and it's the United States' No. 1{{U}} (4) {{/U}}problem. When someone is depressed, her behavior{{U}} (5) {{/U}}change and she loses interest in activities she{{U}} (6) {{/U}}enjoyed (like sports, music, friendships). The sadness usually lasts every day for most of the day and for two weeks or more. What{{U}} (7) {{/U}}depression? A{{U}} (8) {{/U}}event can certainly bring{{U}} (9) {{/U}}depression, but some will say it happens{{U}} (10) {{/U}}a specific cause. So how do you know if you're just having a bad day{{U}} (11) {{/U}}are really depressed? Depression affects your{{U}} (12) {{/U}}, moods, behavior and even your physical health. These changes often go{{U}} (13) {{/U}}or are labeled{{U}} (14) {{/U}}simply a bad case of the blues. Someone who's truly{{U}} (15) {{/U}}depression will have{{U}} (16) {{/U}}periods of crying spells, feelings of{{U}} (17) {{/U}}(like not being able to change your situation) and{{U}} (18) {{/U}}(tike you'll feel this way forever), irritation or agitation. A depressed person often{{U}} (19) {{/U}}from others, Depression seldom goes away by itself, and the greatest{{U}} (20) {{/U}}of depression is suicide. The risk of suicide increases if the depression isn't treated.

单选题Either dye or oil paints ______ to color the materials for making clothes in that factory.

单选题It is so heavy that it can only be lifted with our ______ effort.