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发表于 2016-7-25 12:26:58
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22. The ultimate unification resulted from .
[A] the strong support from President Truman
[B] a concession made by each side of the disputes
[C] the passage of a new bill in the Congress
[D] a consensus reached by all services
23. One of the important disputes between the Navy and the Air Force was over .
[A] the competition for fiscal budget
[B] the procurement of the latest weapons
[C] the leadership of the Army
[D] the principle of civilian dominance of the Army
24. It can be inferred from the text that Forrestal’s appointment as Secretary of Defense was expected
to .
[A] outrage advocates of the Army air forces
[B] result in decreased levels of defense spending
[C] win the Congressional approval of the unification plan
[D] appease members of the Navy
25. Although the unification was not entirely successful, it has the unexpected result of .
[A] ensuring civilian control of the military
[B] augmenting United States military capability
[C] stopping interference from the other branches
[D] clarifying the objectives of each service
Text 2
The National Security Act of 1947 created a military establishment headed by a single Secretary of Defense.
The legislation has been a year-and-a-half in the making-beginning when President Truman first recommended
that the armed services be recognized into a single department. During that period the President’s concept of a
unified armed service was torn apart and put back together several times, the final measure to emerge from
Congress being a compromise. Most of the opposition to the bill came from the Navy and its numerous civilian
spokesmen, including secretary of the Navy James Forrestal. In support of unification (and a separate air force
that was part of the unification package) were the Army air forces, the Army, and, more importantly, the
President of the United States.
Passage of the bill did not bring and end to the bitter interservice disputes. Rather than unify, the act served
only to federate the military services. It neither halted the rapid demobilization of the armed forces that allowed
World War II nor brought to the new national military establishment the loyalties of officers steeped in the
traditions of the separate services. At a time when the balance of power in Europe and Asia was rapidly shifting,
the services lacked any precise statement of United States foreign policy from the National Security Council on
which to base future programs. The services bickered unceasingly over their respective roles and missions,
already complicated by the Soviet nuclear capability that for the first time made the United States susceptible to
devastating attack. Not even the appointment of Forrestal as First Secretary of Defense allayed the suspicion of
naval officers and their supporters that the role of the U.S. Navy was threatened with permanent eclipse. Before
the war of words died down, Forrestal himself was driven to resignation and then suicide.
By 1948, the United States military establishment was forced to make do with a budget approximately 10
percent of what it had been at its wartime peak. Meanwhile, the cost of weapons procurement was rising
geometrically as the nation came to put more and more reliance on the atomic bomb and its delivery systems.
These two factors inevitably made adversaries of the Navy and the Air Force as the battle between advocates of
the B-36 and the super carrier so simply demonstrates. Given several fiscal restraints on the one hand, and on the
other the nation’s increasing reliance on strategic nuclear deterrence, the conflict between these two services over
roles and missions was essentially a contest over slices of an ever-diminishing pie.
Yet if in the end neither service was the obvious victor, the principle of civilian dominance over the military
clearly was. If there had even been any danger that the United States military establishment might exploit, to the
detriment of civilian control. The goodwill it enjoyed as a result of its victories in World War II, that danger
disappeared in the interservice animosities engendered by the battle over unification.
26. Regan is called the intellectual leader of the animal-rights movement because .
[A] he is a philosopher in the field of animal rights protection
[B] he helps to make animal rights movement an academic subject
[C] he has written many books on how to protect animal rights
[D] he proves that animal societies have their moral standards as human societies do
27. All of the following are mentioned as Regan’s concepts of animal rights movement except .
[A] animals have some basic rights like people
[B] people should reassess their relationship to animals
[C] animals should not be taken to be properties to people
[D] the way morality is taught in the academic circle should be changed
28. What is the “invisible revolution” mentioned in the third paragraph?
[A] Academia begins to take animal rights movement seriously.
[B] Violence should sometimes be used to protect animal rights.
[C] An attempt has been made to stop animal husbandry altogether.
[D] The bill of rights for animal has been written into the law.
29. We learn from the passage that Regan .
[A] is a professor at the University of Melbourne
[B] consents to the employment of violence in animal protection
[C] is a vegetarian who is fairly familiar with Plato’s philosophy
[D] is the first man who is fully convinced that animals have rights
30. Regan obviously believes that the prospect of animal rights movement is .
[A] gloomy [B] bright
[C] uncertain [D] doomed
Text 3
Last year, America’s Defense Advanced Research Projects Agency, DARPA, thought it would be a good
idea to organize a robot race across the Nevada desert. The idea of the Grand Challenge, as DARPA dubbed it,
was for autonomous robot vehicles to steer a 227 km (142-mile) course and claim a $ 1 m jackpot. This would be
a first step towards DARPA’s ultimate goal of being able to build unmanned self-driving military vehicles and
thus keep American troops out of harm’s way on the battlefield.
This year’s crop of 23 entrants were offered an even greater incentive- a $ 2 m prize for the winner. That,
plus the intervening 18 months, seems to have done the trick. This time, five vehicles finished the 211 km course.
The winner, a modified Volkswagen Touareg dubbed Stanley by its markers, a team from Stanford University,
did it in a mere six hours and 54 minutes.
Stanley was, of course, specially hardened by its designers for the rough terrain of the Nevada desert. The
clever bit, however, was the vehicle’s brain. This was designed and built by the Stanford Artificial Intelligence
Laboratory (SAIL).
Stanley’s brain consists of six top-of-the-range Pentium chips wired collaboratively together. It is
programmed with special software that is able to learn from its mistakes. This software mastered the tricks of
collision-avoidance in a series of desert test runs conducted before the race started.
Like all brains, Stanley’s has a range of sensory inputs to process. A global positioning system (GPS)
receiver tells it where on the Earth’s surface it is. Television cameras, radar and four laser-based distance
monitors tell it what its surroundings are like. By comparing its GPS location with its pre-programmed
destination (announced only a few hours before the race began), it knew which may it wanted to go. And, by
studying its surroundings, it could work out what looked like the safest route that was also in approximately the
right direction.
Although Stanley carried off the laurels, the other four finishers did respectably. Sandstorm managed a time
just ten minutes behind the winner while her sister vehicle highlander came in ten minutes after that. Gray Bot
and Terra Max, the other two course-completers, came in at seven hours 30 minutes and 12 hours 51 minutes,
respectively.
So smart, autonomous vehicles can, indeed, find their way across several hundred kilometers of desert. To
question is, what next? DARPA’s answer, of course, will be to go down the military route. But this sort of
technology has obvious civilian applications as well, as Sebastian Thrun, the head of both SAIL and the Stanford
racing team, is keen to emphasize.
Dr Thrun thinks that it could lead to self-driving road vehicles within 30 years and – more immediately – to
greatly improved collision—avoidance systems. Whether the freeways of California will prove as easy to
navigate as the gulches of Nevada, though, remains to be seen.
31. The purpose of holding a robot race is to
[A] adventure through the Nevada desert.
[B] develop unpiloted vehicles for military use.
[C] win a $1 m jackpot.
[D] keep American troops unharmed.
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