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as much as 20 percent of the leaf and small-stem material, the most nutritious parts of the plant, shatters and falls to the ground. 主语是？
417. In the Soviet Union the attorney’s role is often played by the judge, who
not only reserves time to hear citizens’ legal complaints but also prepares
their cases if the claims are valid. 418.
In the textbook publishing business, the second quarter is historically
weak, because revenues are low and marketing expenses are high as
companies prepare for the coming school year. 419.
In the traditional Japanese household, most clothing could be packed flat,
and so elaborate closet facilities were unnecessary. 420.
In the United States, trade unions encountered far more intense
opposition in their struggle for social legitimacy than did the organized labor movements of most other democratic nations.
421. In theory, international civil servants at the United Nations are prohibited
from continuing to draw salaries from their own governments; in practice, however, some governments merely substitute living allowances for the paychecks of their employees who have been assigned to the United Nations.
422. In three centuries—from 1050 to 1350—several million tons of stone were
quarried in France for the building of eighty cathedrals, five hundred large
churches, and some tens of thousands of parish churches. 423.
In virtually all types of tissue in every animal species, dioxin induces the
production of enzymes that are the organism’s attempt to metabolize, or
render harmless, the chemical irritant. 424.
Income in a single year is a very poor guide to income and wealth over
even a few years, much less a lifetime; in the longer run, a tax on what people
spend is therefore not much different from a tax on what they earn. 425.
Increases in the cost of energy, turmoil in the international money
markets, and the steady erosion of the dollar have altered the investment strategies of United States corporations more radically than those of foreign
corporations. 426.
India is country with at least fifty major regional languages, fourteen of
which are officially recognized. 427.
Industrial pollution has done serious and possibly irreversible damage to the bronze horses on the facade of the cathedral of St. Mark La Venica.
428. Inflation has made many Americans reevaluate their assumptions about
the future; they still expect to live better than their parents did, but not so well as they once thought they could. 为什么补出的动词 did 不可能指代 expect？better than 修饰的是 live 所以 than 后的 did 指 live。
429. Inflation in medical costs slowed for the fifth consecutive year in 1986 but was still about 50 percent greater than the rate of price increases for other items included in the consumer price index. 430.
Initiated on Columbus Day 1992, five centuries after Europeans arrived in the New World, Project SETI pledged a $100 million investment in the search
for extraterrestrial intelligence. 431.
Innovative companies are skillful not only in developing new products but
also in finding new ways to promote old ones. 432.
Intar, the oldest Hispanic theater company in New York, has moved away
from the Spanish classics and now draws on the works of contemporary Hispanic authors, both those who live abroad and those who live in the United States. 433.
Intended primarily to stimulate family summer travel, the new airfare,
which allows both an adult and a child to fly for the price of one ticket, also shortens the advance-purchase requirement for family travel to a minimum of seven days rather than fourteen. 434.
International sporting events need not be fiscal disasters, as the financial
success of the 1992 Olympic Games demonstrates. 435.
Inuits of the Bering Sea were isolated from contact with Europeans longer
than were Aleuts or Inuits of the North Pacific and northern Alaska. 436.
IRS provision 254-B requires that an S corporation with assets of greater
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than $200,000 send W-2 forms to its full- and part-time employees on or before Jan. 31. 437.
It appears illogical to some people that West Germany, which bans such
seemingly lesser evils as lawn-mowing on Sundays, still has some 4,000 miles of highway with no speed limit.
438. It has been estimated that illiteracy costs the United States at least $20
billion a year in lost industrial output and tax revenues. 439.
It is a special feature of cell aggregation in the developing nervous system
that in most regions of the brain the cells not only adhere to one another but
also adopt some preferential orientation. 440.
It is an oversimplified view of cattle raising to say that all one has to do with cattle is leave them alone while they feed themselves and then corral them and drive them to market when the time is ripe. 441.
It is as difficult to prevent crimes against property as it is to prevent those
against a person.
442. It is characteristic of the Metropolitan Museum of Art, as it is of virtually every great American museum, that the taste of local collectors has played at least as large a part in the formation of its collections as have the judgments of the art historian. 这种句式没见过 443.
It is not likely that the competitive imbalance that now exists between
Japan and all other major industrial nations will be redressed within the foreseeable future.
444. It is possible that Native Americans originally migrated to the Western Hemisphere over a bridge of land that once existed between Siberia and Alaska. 445.
It is well known in the supermarket industry that how items are placed on
shelves and how frequently the inventory turns over can be crucial to profits. 446.
It may be another fifteen years before spacecraft from Earth again venture to Mars, a planet now known to be cold, dry, and probably lifeless.
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447. It may be that by focusing primarily on a patient’s mental condition and
on vague and often very speculative psychodynamic factors, mental health professionals lessen the accuracy of their predictions about the patient’s future behavior. 448.
It may someday be worthwhile to try to recover uranium from seawater, but at present this process is prohibitively expensive. 449.
It seems likely that a number of astronomical phenomena, such as the
formation of planetary nebulas, are caused by the interaction of two stars
orbiting each other at close range. 450.
It takes a deft balance of savings discipline, investment knowledge, risk taking, luck, and time to raise a million dollars through investments.
451. It was an increase in reported cases of malaria along the Gulf Coast that
in 1921 led the health authorities to grant a permit for human
experimentation to the group later called Unimedco. 452.
Plagued by injuries, tennis celebrity Tracy Austin, who won the Italian and U.S. Opens at age 16 in 1979, sat out the years from 1984 to 1988, occasionally working as a television commentator.
453. It was the loss of revenue from declines in tourism that in 1935 led the
Saudi authorities to grant a concession for oil exploration to the company later to be known as Aramco. 454.
Japan used the huge sums of capital it received from the United States
after the Second World War to help build a modern industrial system. 455.
Joachim Raff and Giacomo Meyerbeer are examples of the kind of
composer who receives popular acclaim while living, but whose reputation
declines after death and never regains its former status. 456.
Joan of Arc, a young Frenchwoman who claimed to be divinely inspired,
turned the tide of English victories in her country by liberating the city of
Orleans and s persuaded Charles VII of France to claim his throne. 457.
John Smith provides information on the conditions that lead women to a
gynecologist, noting that these conditions can be, and sometimes are, used to