【正文】 concentrated is closest in meaning to which of the following?(A) allowed(B) clustered(C) exploded(D) strengthened of the following can be inferred about the theory of plate tectonics?(A) It is no longer of great interest to geologists.(B) It was first proposed in the 196039。s.(C) It fails to explain why earthquakes occur.(D) It refutes the theory of the existence of a supercontinent. paragraph following the passage most probably discusses(A) why certain geological events happen where they do(B) how geological occurrences have changed over the years(C) the most unusual geological developments in the Earth39。s history(D) the latest innovations in geological measurementQuestions 1928 In the United States in the early 180039。s, individual state governments had moreeffect on the economy than did the federal government. States charteredmanufacturing, baking, mining, and transportation firms and participated in theconstruction of various internal improvements such as canals, turnpikes, and railroads.(5) The states encouraged internal improvements in two distinct ways: first, by actuallyestablishing state panies to build such improvements。 second, by providing part ofthe capital for mixed publicprivate panies setting out to make a profit.In the early nineteenth century, state governments also engaged in a surprisinglylarge amount of direct regulatory activity, including extensive licensing and inspection(10) programs. Licensing targets reflected both similarities in and differences between theeconomy of the nineteenth century and that of today: in the nineteenth century, stateregulation through licensing fell especially on peddlers innkeepers, and retailmerchants of various kinds. The perishable modities of trade generally came understate inspection, and such important frontier staples as lumber and gunpowder were(15) also subject to state control. Finally, state governments experimented with direct laborand business regulation designed to help the individual laborer or consumer, includingsetting maximum limits on hours of work and restrictions on pricefixing by businesses.Although the states dominated economic activity during this period, the federalgovernment was not inactive. Its goals were the facilitation of western settlement and(20) the development of native industries. Toward these ends the federal governmentpursued several courses of action. It established a national bank to stabilized bankingactivities in the country and, in part, to provide a supply of relatively easy money to thefrontier, where it was greatly needed for settlement. It permitted access to publicwestern lands on increasingly easy terms, culminating in the Homestead Act of 1862,(25) by which title to land could be claimed on the basis of residence alone. Finally, it set upa system of tariffs that was basically protectionist in effect, although maneuvering forposition by various regional interests produced frequent changes in tariff ratesthroughout the nineteenth century. does the passage mainly discuss?(A) States39。 rights versus federal rights(B) The participation of state governments in railroad, canal, and turnpike construction(C) The roles of state and federal governments in the economy of the nineteenth century(D) Regulatory activity by state governments word effect in line 2 is closest in meaning to(A) value(B) argument(C) influence(D) restraint of the following are mentioned in the passage as areas that involved state governments in the nineteenth century EXCEPT(A) mining(B) banking(C) manufacturing(D) higher education word distinct in line 5 is closest in meaning to(A) separate(B) innovative(C) alarming(D) provocative can be inferred from the first paragraph that in the nineteenth century canals and railroads were(A) built with money that came from the federal government(B) much more expensive to build than they had been previously(C) built predominantly in the western part of the country(D) sometimes built in part by state panies regulatory activities of state governments included all of the following EXCEPT(A) licensing of retail merchants(B) inspecting materials used in turnpike maintenance(C) imposing limits on price fixing(D) control of lumber word setting in line 17 is closest in meaning to(A) discussing(B) analyzing(C) establishing(D) avoiding word ends in line 20 is closest in meaning to(A) Benefits(B) decisions(C) services(D) goals to the passage, which of the following is true of the Homestead Act of 1862?(A) It made it increasingly possible for settlers to obtain land in the West.(B) It was a law first passed by state governments in the West.(C) It increased the money supply in the West.(D) It established tariffs in a number of regions of the following activities was the responsibility of the federal government in thenineteenth century?(A) Control of the manufacture of gunpowder(B) Determining the conditions under which individuals worked(C) Regulation of the supply of money(D) Inspection of new homes built on western landsQuestions 2938 Life originated in the early seas less than a billion years after the Earth was formed.Yet another three billion years were to pass before the first plants and animals appearedon the continents. Life39。s transition from the sea to the land was perhaps as much of anevolutionary challenge as was the genesis of life.(5) What forms of life were able to make such a drastic change in lifestyle? Thetraditional view of the first terrestrial organisms is based on megafossilsrelativelylarge specimens of essentially whole plants and animal. Vascular plants, related tomodern seed plants and ferns, left the first prehensive megafossil record. Becauseof this, it has been monly assumed that the sequence of t