单项选择题
Stone Age potters crafted complicated and often delicate ceramic pots, tools, and jewelry. They also crafted crude pottery figurines. Many of the delicate ceramic pots, tools, and jewelry have been found intact or nearly so, whereas the figurines, crafted at roughly the same time as the ceramics, have largely been found in tiny fragments.
Which of the following, if true, best explains why few of the pottery figurines, but many of the delicate ceramics, have been found intact ？（）
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.
相关考题
-
单项选择题
Currently, the number of first-time admissions of individuals diagnosed as manic-depressives to hospitals in Great Britain exceeds by nine times the number of admissions of such patients to public and private hospitals in the United States, even though the population size of the United States is many times that of Great Britain. Which of the following, if true, would be most useful to an attempt to explain the situation described above ？（）
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 new ordinance passed by the Gorenton Council a year ago banned the sale of all nonrecyclable plastic packaging for food being sold in Gorenton. A substantial percentage of Gorenton’s plastic waste, however, is still composed of nonrecyclable plastic food packaging. Which of the following, if true, best contributes to reconciling the apparent discrepancy above ？（）
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
Extinction is a process that can depend on a variety of ecological, geographical, and physiological variables. These variables affect different species of organisms in different ways, and should, therefore, yield a random pattern of extinction. However, the fossil record shows that extinction occurs in a surprisingly definite pattern, with many species vanishing at the same time. Which of the following, if true, forms the best basis for at lest a partial explanation of the patterned extinction revealed by the fossil record ？（）
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.
