自动化血培养连续监视系统的发展，加快了细菌检验自动化的进程，其工作原理主要为通过各种不同技术来检测细菌生长产生CO2后引起酸碱度,氧化还原电势以及瓶内压力变化来判断待检标本中细菌的存在，不同的血培养系统采用的技术也有所不同。

VITAL系统采用的技术是

A:气压传感技术 B:放射性14C标记技术 C:特殊的CO感受器 D:同源荧光技术 E:荧光探测技术

vital statistics

Conservatism, George Will told me when I interviewed him many years ago, was rooted in reality. It started not from an imagined society but from the world as it actually exists. But conservatives now champion ideas drawn from abstract principles with little regard to the realities of America’s present or past. This is a tragedy, because conservatism has an important role to play in modernizing the U. S.
Consider the debates over the economy. The Republican prescription is to cut taxes and slash government spending, but what is the evidence that tax cuts are the best path to revive the U. S. economy Taxes as a percentage of GDP are at their lowest level since 1950. The U. S. is among the lowest taxed of the big industrial economies. So the case that America is grinding to a halt because of high taxation is not based on facts but is simply a theoretical assertion. The rich countries that are in the best shape right now, with strong growth and low unemployment, are ones like Germany and Denmark, neither one characterized by low taxes.
In fact, right now any discussion of government involvement in the economy—even to build vital infrastructure—is impossible because it is a cardinal tenet of the new conservatism that such involvement is always and forever bad. Meanwhile, across the globe, from Singapore to South Korea to Germany to Canada, evidence abounds that some strategic actions by the government can act as catalysts for free-market growth. Of course, American history suggests that as well. In the 1950s, ’60s and ’70s, the U.S. government made massive investments in science and technology, in state universities and in infant industries. Those investments triggered two generations of economic growth and put the U. S. on top of the world of technology and innovation.
But that history has been forgotten. When considering health care, for example, Republicans confidently assert that their ideas will lower costs, when we simply do not have much evidence for this. What we do know is that of the world’s richest countries, the U.S. has by far the greatest involvement of free markets and the private sector in health care. It also consumes the largest share of GDP, with no significant gains in health on any measurable outcome. We need more market mechanisms to cut medical costs, but Republicans don’t bother to study existing health care systems anywhere else in the world. "I know it works in practice," the old saw goes, "but does it work in theory"
Conservatives used to be the ones with heads firmly based in reality. Their reforms were powerful because they used the market, streamlined government and empowered individuals. We need conservative ideas to modernize the U. S. economy and reform American government. But what we have instead are policies that don’t reform but just cut and starve government—a strategy that pays little attention to history or best practices from around the world and is based instead on a theory.
The author is clearly in favor of

A:government intervention in economy. B:massive investments in vital infrastructure. C:heavier taxation of the rich population. D:a theoretical foundation for government policies.

Violent criminals with something to hide have more reason than ever to be paranoid about a tap on the shoulder which could send them to jail. Queensland police are working through a backlog of unsolved murders with some dramatic success. Greater cooperation between the public and various law enforcement agencies is playing a role, but new genetic-testing techniques are the real key to providing the vital evidence to mount a prosecution.
Evidence left behind at the scene of any murder is guaranteed to outlive the person who left it. A blood, saliva or tissue sample in the size of a pin, kept dry and out of sunlight, will last several thousand years. From it, scientific analysis now can tell accurately the sex of the person who left it.
When matched against a sample from a crime suspect, it can indicate with million-to-one certainty whether the samples come from the same source. Only twins share identical DNA. So precise is the technology if the biological parents of a suspect agree to provide a sample, forensic scientists can work out the rest for themselves without cooperation from the suspect.
Queensland forensic scientists have been using the DNA testing technology since 1992, and last year they were recognized internationally for their competence in positive individual identification. That is part of the reason 20 of Queensland’s most puzzling unsolved murders dating to 1932 are being ac timely investigated. There also have been several recent arrests for unsolved murders.
Forensic evidence was instrumental in charges being laid over the bashing death of waitress Tasha Douty on Brampton Island in 1983. Douty’s blood-splattered, naked body was found on a nude sunbathing beach at Dinghy Bay on the island. Footprints in the sand indicated that the killer had grappled with the 21-year-old mother who had fled up the beach before being caught and beaten to death.
According to Leo Freney, the supervising forensic scientist at the John Tonge Centre at Brisbane’s Griffith University, DNA testing has become an invaluable tool for police, its use is in identifying and rejecting suspects. In fact, he says, it eliminates more people than it convicts.
" It is easily as good as fingerprints for the purpose of identification, " he says. "In the case of violent crime it is better than fingerprints. You can’t innocently explain things like blood and semen at a crime scene where you may be able to innocently explain fingerprints. " In Queensland, a person who has been arrested on suspicion of an offence can be taken before a magistrate and ordered to provide a sample of body fluid by :force if necessary.
What can be inferred from the text

A:Criminal evidence could be kept well in dry and warm places. B:The high accuracy of genetic testing lies in DNA’s uniqueness. C:DNA testing provides the vital evidence in Tasha Douty Case. D:Fingerprints are better than DNA to convict suspects.

It is vital that enough money （　） to fund the project.

A:be collected B:must be collected C:is collected D:can be collected

(Let's not) waste time on (matters of no important). We have other (vital) problems to (deal with).

A:Let's not B:matters of no important C:vital D:deal with

(Let's not) waste time on (matters of no important). We have other (vital) problems to (deal with).

A:Let's not B:matters of no important C:vital D:deal with

Communication Problems After 20 years of research, my colleagues and I have discovered that all communication involves our bodies, sometimes profoundly. While we speak with words, we also speak with every fiber of our being. This "language of the heart" is integral to the health and emotional life of all of us. We found that even a pleasant chat about the weather can affect the cardiovascular (心血管性的) system , particularly blood pressure. The traditional way of taking blood pressure—with a stethoscope (听诊器)—meant that the patient had to keep silent, and this silence prevented clinicians from discovering the link between communication and blood pressure. The breakthrough in our studies occurred in 1977, when we met Ed, a typical hypertensive patient who came to the University of Maryland’’s Psychophysiology Center for treatment. We hooked up Ed to a new com?puter that could continuously monitor blood pressure. We found that his pressure immediately increased every time he spoke, even if he was discussing the most neutral topic. What was more surprising was that Ed was unaware of these changes. This finding so intrigued us we began testing others. The results were the same. Blood pressure and heart rate rose rapidly whenever people talked. We asked students to read aloud from a bland(乏味的)text. Their blood pressure and heart rate rose rapidly every time. We tested 38 deaf-mute volunteers. When these people signed, their blood pressure also increased. This confirmed our suspicion that it was the act of communication, not just talking, that led to these changes. Most normal talk is a seesaw (一上一下的动作). The rising of blood pressure when one talks is balanced by a rapid lowering of pressure when one listens. But the rhythm is out of synclinal hypertensives. They fluently fail to listen; they are on guard, defensive. So their pressure stays up. The benefits of listening are seen in the "orienting reflex," discovered by Pavlov. When a dog hears a sound or sees movement, it will stop all activity and cock its head. Another Russian scientist, E.N. Soklor, noticed that the dog’’s heart rate slows. A similar response occurs in people too—and it lowers blood activities: reading out loud, staring at a blank wall and watching fish in a tank. Blood pressure washing test when the people spoke. But it was lowest when they watched the fish, rather than when they simply sat and relaxed. Whether watching fish or listening to another person, attending calmly to the world outside yourself helps lower blood pressure. When I got hypertensives to listen undefensively, their blood pressure often fell dramatically. Why do some people find talking so stressful, and listening so difficult? I tested some healthy newborns. When they cried, their blood pressure often doubled. We began thinking about pressure surges in hypertensives as similar to the changes when a baby cries. Though calm on the surface while talking, their bodies are screaming to be heard. For these people, communication becomes a desperate but hidden struggle. Inside their adult bodies is a baby crying, terrified because no one can hear it. So how can we enjoy conversation yet keep blood pressure down? By listening more, by breathing regularly while talking, by alternating between talking and paying attention to what the other person is saying. But what can hypertensives do? Treatments that teach them to focus on their relationship and how to communicate in a relaxed way can be a start toward health. We can understand and cope with illness only when we view ourselves as part of a complex world beyond the confines of our own individual skin. The response of our hearts, blood vessels and muscles when we communicate with spouse, children, friends and colleagues is as vital to our cardiovascular health as is exercise or diet. From the article, we can conclude that______.

A:to communicate in a proper way will enable us to get more information B:most of the people are unaware of the connection between communication patterns and health C:a proper communication pattern is only important to the hypertensive patients D:proper communication is of vital importance to all of us