PRAXIS2 무료 덤프문제 온라인 액세스
| 시험코드: | PRAXIS2 |
| 시험이름: | Pre-Professional Skills Test (PPST) II |
| 인증사: | PRAXIS |
| 무료 덤프 문항수: | 430 |
| 업로드 날짜: | 2026-06-02 |
There are three disks on a board of a child's toy. The colours are red, green and blue, dark shades on one
side of the disks and light shades on the other side. The disks are turned to change colours from the initial
setting according to the following rules.
If red is the only one in light shade in the initial setting, then turn the green disk.
If red and green are the only ones in light shades in the initial setting, then turn the blue disk.
If all three disks are in light shades in the initial setting, then turn the blue disk.
For any other initial setting, turn all disks.
If the initial setting is red and green disks in light shade and blue in dark, what is the second setting?
Most economists in the United States seem captivated by spell of the free market. Consequently, nothing
seems good or normal that does not accord with the requirements of the free market.
A price that is determined by the seller or for that matter, established by anyone other than the aggregate
of consumers seems pernicious, accordingly, it requires a major act of will to think of price fixing (the
determination of prices by the seller) as both "normal" and having a valuable economic function. In fact,
price-fixing is normal in all industrialized societies because the industrial system itself provides, as an
effortless consequence of its own development, the price-fixing that requires, Modern industrial planning
requires and rewards great size. Hence a comparatively small number of large firms will be competing for
the same group of consumers. That each large firm will act with consideration of its own needs and thus
avoid selling its products for more than its competitors charge is commonly recognized by advocates of
free-markets economic theories. But each large firm will also act with full consideration of the needs that it
has in common with the other large firms competing for the same customers. Each large firm will thus
avoid significant price cutting, because price cutting would be prejudicial to the common interest in a
stable demand for products. Most economists do not see price-fixing when it occurs because they expect
it to be brought about by a number of explicit agreements among large firms; it is not.
More over those economists who argue that allowing the free market to operate without interference is the
most efficient method of establishing prices have not considered the economies of non socialist countries
other than the United States. These economies employ intentional price-fixing usually in an overt fashion.
Formal price fixing by cartel and informal price fixing by agreements covering the members of an industry
are common place. Were there something peculiarly efficient about the free market and inefficient about
price fixing, the countries that have avoided the first and used the second would have suffered drastically
in their economic development. There is no indication that they have.
Socialist industry also works within a frame work of controlled prices. In early 1970's, the Soviet Union
began to give firms and industries some of the flexibility in adjusting prices that a more informal evolution
has accorded the capitalist system. Economists in the United States have hailed the change as a return to
the free market. But Soviet firms are no more subject to prices established by free market over which they
exercise little influenced than are capitalist firms.
The primary purpose of the passage is to
The fossil remain of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more
than two centuries. How such large creatures, which weighed in some cases as much as a piloted
hangglider and had wingspans from 8 to 12 meters, solved the problems of powered flight, and exactly
what these creatures were-reptiles or birds-are among the questions scientist have puzzled over.
Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls,
pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the
class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing like
membrane. The other fingers were short and reptilian, with sharp claws, in birds the second finger is the
principle strut of the wing, which consists primarily of features. If the pterosaur walked or remained
stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape
along side of the animal's body.
The pterosaurs resembled both birds and bats in their overall structure and proportions. This is not
surprising because the design of any flying vertebrate is subject to aerodynamic constraints. Both the
pterosaurs and the birds have hollow bones, a feature that represents a saving in weight. In the birds,
however, these bones are reinforced more massively by internal struts.
Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T.H. Huxley reasoned
that flying vertebrates must have been warm blooded because flying implies a high internal temperature.
Huxley speculated that a coat of hair would insulate against loss of body heat and might streamline the
body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and
relatively thick hairlike fossil material was the first clear evidenced that his reasoning was correct.
Efforts to explain how the pterosaurs became air-borne have led to suggestions that they launched
themselves by jumping from cliffs, by dropping from trees, or even by rising into light winds from the crests
of waves. Each hypothesis has its difficulties. The first wrongly assumes that the pterosaur's hind feet
resembled a bat's and could served as hooks by which the animal could bang in preparation for flight. The
second hypothesis seems unlikely because large pterosaurs could not have landed in trees without
damaging their wings. The birds calls for high waves to channels updrafts. The wind that made such
waves however, might have been too strong for the pterosaurs to control their flight once airborne.
The conclusion stated about the number of people who suffer as a result of forced idleness depends
primarily on the point that
The fossil remain of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more
than two centuries. How such large creatures, which weighed in some cases as much as a piloted
hangglider and had wingspans from 8 to 12 meters, solved the problems of powered flight, and exactly
what these creatures were-reptiles or birds-are among the questions scientist have puzzled over.
Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls,
pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the
class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing like
membrane. The other fingers were short and reptilian, with sharp claws, in birds the second finger is the
principle strut of the wing, which consists primarily of features. If the pterosaur walked or remained
stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape
along side of the animal's body. The pterosaurs resembled both birds and bats in their overall structure
and proportions. This is not surprising because the design of any flying vertebrate is subject to
aerodynamic constraints. Both the pterosaurs and the birds have hollow bones, a feature that represents
a saving in weight. In the birds, however, these bones are reinforced more massively by internal struts.
Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T.H. Huxley reasoned
that flying vertebrates must have been warm blooded because flying implies a high internal temperature.
Huxley speculated that a coat of hair would insulate against loss of body heat and might streamline the
body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and
relatively thick hairlike fossil material was the first clear evidenced that his reasoning was correct.
Efforts to explain how the pterosaurs became air-borne have led to suggestions that they launched
themselves by jumping from cliffs, by dropping from trees, or even by rising into light winds from the crests
of waves. Each hypothesis has its difficulties. The first wrongly assumes that the pterosaur's hind feet
resembled a bat's and could served as hooks by which the animal could bang in preparation for flight. The
second hypothesis seems unlikely because large pterosaurs could not have landed in trees without
damaging their wings. The birds calls for high waves to channels updrafts. The wind that made such
waves however, might have been too strong for the pterosaurs to control their flight once airborne.
The author states that the mitigating effect of social programs involving Income transfers on the income
level of low-income people is often not felt by