多选题The estranged friends attempted ______, but their deep-seated ______ made the resumption of cordial relations impossible.

多选题Shin guards are protective gear worn in a (i) ______ of sports, from ice hockey to rugby, to protect against (ii) ______ leg injuries. Blank (i) A. variety B. phenomenon C. training Blank (ii) D. significant E. frivolous F. indefinite

多选题When elected director general of the World Health Organization, Dr Margaret Chan promised to work ______, to be unflagging in her efforts to produce results.

多选题Because of its accuracy in outlining the Earth's subsurface, the seismic-reflection method remains the most important tool in the search for petroleum reserves. In field practice, a subsurface is mapped by arranging a series of wave-train sources, such as small dynamite explosions, in a grid pattern. As each source is activated, it generates a wave train that moves downward at a speed determined uniquely by the rock's elastic characteristics. As rock interfaces are crossed, the elastic characteristics encountered generally change abruptly, which causes part of the energy to be reflected back to the surface, where it is recorded by seismic instruments. The seismic records must be processed to correct for positional differences between the source and the receiver, for unrelated wave trains, and for multiple reflections from the rock interfaces. Then the data acquired at each of the specific source locations are combined to generate a physical profile of the subsurface, which can eventually be used to select targets for drilling. The passage is primarily concerned with: A. describing an important technique. B. discussing a new method. C. investigating a controversial procedure. D. announcing a significant discovery. E. promoting a novel application.

多选题Although the editors were reputed to be very ______, the uneven quality of the material they put into the anthology suggests they were too ______.

多选题As Gilbert White, Darwin, and others observed long ago, all species appear to have the innate capacity to increase their numbers from generation to generation. The task for ecologists is to untangle the environmental and biological factors that hold this intrinsic capacity for population growth in check over the long run. The great variety of dynamic behaviors exhibited by different populations makes this task more difficult: {{U}}some populations remain roughly constant from year to year; others exhibit regular cycles of abundance and scarcity; still others vary. wildly, with outbreaks and crashes that are in some cases plainly correlated with the weather, and in other cases not.{{/U}} According to the passage, all of the following behaviors have been exhibited by different populations EXCEPT: A. roughly constant population levels from year to year. B. regular cycles of increases and decreases in numbers. C. erratic increases in numbers correlated with the weather. D. unchecked increases in numbers over many generations. E. sudden declines in numbers from time to time.

多选题The powers and satisfactions of primeval people, though few and meager, were ______ their few and simple desires. A. simultaneous with B. commensurate with C. substantiated by D. circumscribed by E. ruined by

多选题Initially only the carpeting outside the restroom was ______ by water from the burst pipe; eventually the entire hallway flooded.

多选题A program instituted in a particular state allows parents to prepay their children's future college tuition at current rates. The program then pays the tuition annually for the child at any of the state's public colleges in which the child enrolls. Parents should participate in the program as a means of decreasing the cost for their children's college education. Which of the following, if true, is the most appropriate reason for parents not to participate in the program? A. The parents are unsure about which public college in the state the child will attend. B. The amount of money accumulated by putting the prepayment funds in an interest-bearing account today will be greater than the total cost of tuition for any of the public colleges when the child enrolls. C. The annual cost of tuition at the state's public colleges is expected to increase at a faster rate than the annual increase in the cost of living. D. Some of the state's public colleges are contemplating large increases in tuition next year. E. The prepayment plan would not cover the cost of room and board at any of the state's public colleges.

多选题Like many other groups of people in the United States who have needed laws to ______ equal rights, Americans with disabilities have had to ______ legislation addressing their concerns.

多选题Although many companies ______ the idea of using solar power, the start-up costs are often too high to ______ the conversion from other technologies.

多选题Emily Post, who died fifty years ago, was probably the best-known on American manners and etiquette; her books are still in use today.

多选题Water beetles have a number of adaptations that make them able to live in water rather than on land as their countless beetle cousins do. Their spiracles open and close to take in air when they are on the surface and keep water out when they are underwater. Whirligig beetles have a clever division in their eyes that allows them to see above and below the surface at the same time. A number of water beetles, especially those that dive to find prey, trap and carry air bubbles with them on their abdomens, much as scuba divers carry air in their oxygen tanks. The legs of water beetles differ from those of their landlubber cousins. Often they are covered with fringelike hairs that help them speed across the water"s surface. Like all beetles, water beetles are capable of flight, but they usually use this skill only to escape predators or to move from puddle to pond.

多选题The pharmaceutical company insisted that its testing of new drugs was quite ______, more rigorous than the industry standard.

多选题The excessive number of safety regulations that the federal government has placed on industry poses more serious hardships for big businesses than for small ones. Since large companies do everything on a more massive scale, they must alter more complex operations and spend much more money to meet government requirements. Which of the following, if true, would most weaken the argtument above? A. Small companies are less likely than large companies to have the capital reserve for improvements. B. The operations of small companies frequently rely on the same technologies as the operations of large companies. C. Safety regulation codes are uniform, established without reference to size of company. D. Large companies typically have more of their profits invested in other business than do small companies. E. Large companies are in general more likely than small companies to diversity the markets and products.

多选题Analysis of prehistoric air trapped in tiny bubbles beneath the polar ice sheets and of the composition of ice surrounding those bubbles suggests a correlation between carbon dioxide levels in the Earth's atmosphere and global temperature over the last 160,000 years. Estimates of global temperature at the time air in the bubbles was trapped rely on measuring the relative abundances of hydrogen and its heavier isotope, deuterium, in the ice surrounding the bubbles. When global temperatures are relatively low, water containing deuterium tends to condense and precipitate before reaching the poles; thus, ice deposited at the poles when the global temperature was cooler contained relatively less deuterium than ice deposited at warmer global temperatures. {{U}}Estimates of{{/U}} global temperature based on this information, {{U}}combined with analysis of{{/U}} the carbon dioxide content of air trapped in ice deep beneath the polar surface, {{U}}suggest that during periods of postglacial warming carbon dioxide in the Earth's atmosphere increased by approximately 40 percent.{{/U}} The author states that {{U}}there is evidence to support{{/U}} which of the following assertions? A. Estimates of global temperature that rely on measurements of deuterium in ice deposited at the poles are more reliable than those based on the amount of carbon dioxide contained in air bubbles beneath the polar surface. B. The amount of deuterium in the Earth's atmosphere tends to increase as global temperature decreases. C. Periods of postglacial warming are characterized by the presence of increased levels of carbon dioxide in the Earth's atmosphere. D. Increases in global temperature over the last 160,000 years are largely the result of increases in the ratio of deuterium to hydrogen in the Earth's atmosphere. E. Increases in global temperature over the last 160,000 years have been accompanied by decreases in the amount of deuterium in the ice deposited at the poles.

多选题Like cartoonists, some painters seek to communicate character ______, but this economy of means is not artistic shallowness.

多选题Pardis Sabeti has earned distinction in ______ ways: she developed a means of tracing natural selection in the genome and she sang in a successful rock band.

多选题Unlike her more ______ friends, Danielle is ______, preferring sleep to almost any kind of activity.

多选题Ecologist Frank Ortega warned that the state"s decision to ______ the rigid standards for disposal of toxic wastes would be construed as a signal that sloppiness in handling such wastes will be tolerated.