单项选择题X 纠错
A．When a pottery piece from any batch was broken during finishing, Stone Age people sometimes deliberately smashed the rest of that batch, perhaps to avert bad luck.
B．The composition of clay, which affects the durability of any pottery made from it, varies greatly from one area of the world to another.
C．Pottery was invented in the Stone Age, and techniques for making pottery were mastered well before those required for delicate ceramic work.
D．Stone Age potters drafted pottery figurines as frequently as they did ceramic pieces.
E．Many Stone Age rituals involved the destruction of a pottery figurine, perhaps as a sacrifice to the gods.
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单项选择题
A.Major episodes of extinction can result from widespread environmental disturbances that affect numerous different species.
B.Certain extinction episodes selectively affect organisms with particular sets of characteristics unique to their species.
C.Some species become extinct because of accumulated gradual changes in their local environments.
D.In geologically recent times, for which there is no fossil record, human intervention has changed the pattern of extinction.
E.Species that are widely dispersed are the least likely to become extinct.
单项选择题
A．Fewer food products are packaged in nonrecyclable plasticstoday than were so packaged a year ago.
B．The new ordinance affects only plastic food packaging and not other products packaged in plastic, many of which are sold in Gorenton.
C．Grocery and other stores in nearby suburban areas patronized by many Gorenton residents are unaffected by the new ordinance.
D．Many food products formerly packaged in nonrecyclable plastics are now specially packaged in recyclable plastic before being shipped so that they can be sold in Gorenton.
E．The total amount of both Gorenton’s trash and its plastic waste grew considerably over the past year.
单项选择题
A．The Pazyryk tombs were all robbed during ancient times, but breakage of the tombs’ seals allowed the seepage of water, which soon froze permanently, thereby preserving the tombs’ remaining artifacts.
B．The Pazyryk Valley, surrounded by extremely high mountains, has a distinctive yearly pattern of rainfall, and so trees growing in the Pazyryk Valley have annual rings that are quite distinct from trees growing in nearby valleys.
C．Each log in the Pazyryk tombs has among its rings a distinctive sequence of twelve annual rings representing six drought years followed by three rainy years and three more drought years.
D．The archaeologists determined that the youngest tree used in any of the tombs was 90 years old and that the oldest tree was 450 years old.
E．All of the Pazyryk tombs contained cultural artifacts that can be dated to roughly 2300 years ago.
单项选择题
A．The banks have reassessed the income potential of the completed project and have concluded that total income general would be less than total interest due on the old plus the needed new loans.
B．The banks have identified several other projects that offer faster repayment of the principal if loans are approved now to get those projects started.
C．The banks had agreed with the borrowers that the construction loans would be secured by the completed project.
D．The cost overruns were largely due to unforeseeable problems that arose in the most difficult phase of the construction work.
E．The project stimulated the development and refinement of several new construction techniques, which will make it easier and cheaper to carry out similar projects in the future.
单项选择题
A．The term manic-depressive refers to a wider range of mentally ill patients in Great Britain than it does in the United States.
B．The admission rate in the United States includes those individuals who visit clinics for the first time as well as those who are admitted directly to hospitals.
C．A small percentage of patients diagnosed as manic-depressive in Great Britain are admitted to private nursing homes rather than hospitals.
D．The variety of training institutions in psychology in the United States is greater than in Great Britain, reflecting the variety of schools of psychology that have developed in the United States.
E．Seeking professional assistance for mental health problems no longer carries a social stigma in the United States, as it once did.
单项选择题
A．Diners spent a much longer time at meals served with alcohol than they did at those served without alcohol.
B．The meals eaten later in the day tended to be larger than those eaten earlier in the day, and later meals were more likely to include alcohol.
C．People eat more when there are more people present at the meal, and more people tended to be present at meals served with alcohol than at meals served without alcohol.
D．The meals that were most carefully prepared and most attractively served tended to be those at which alcoholic beverages were consumed.
E．At meals that included alcohol, relatively more of the total calories consumed came from carbohydrates and relatively fewer of them came from fats and proteins.
