Our research confirmed the__________ that when children have many different caregivers， important aspects of their development are liable to be overlooked.

A . to B . at C . o

A . A、I NOW HAVE THE WATCH. B . B、I NOW HAVETHE CONN. C . C、YOU NOW HAVE THE WATCH. D . D、YOU NOW HAVE THE CONN.

A . of B . with C . off D . to

A . to B . with C . for D . of

Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age, and how the process of ageing could be slowed down. With a team a colleague (同事) at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations. " Computer technology enabled the researchers to obtain precise (精确的) measurements of the volume of the front and side sections of the brain, which relate to intellect (智能) and emotion, and determine the human character. " The rear section of the brain, which controls functions like eating and breathing, does not contract with age, and one can continue living without intellectual or emotional facilities. Contraction of front and side parts—as cells die off—was observed in some subjects in their thirties, but it was still not evident in some sixty- and seventy-year-olds. Matsuzawa concluded from his tests that there is a simple remedy to the contraction normally associated with age—using the head. The findings show in general terms that contraction of the brain begins sooner in people in the country than in the towns. Those least at risk, says Matsuzawa, are lawyers, followed by university professors and doctors. White collar workers doing routine work in government offices are, however, as likely to have shrinking brains as the farm workers, bus drivers and shop assistants. Matsuzawa's findings show that thinking can prevent the brain from shrinking. Blood must circulate properly in the head to supply the fresh oxygen the brain cells need. "The best way to maintain good blood circulation is through using the brain, " he says, "Think hard and engage in conversation. Don't rely on pocket calculators. The team of doctors wanted to find out______. A．how to make people live longer B．the size of certain people's brains C．which people are most intelligent D．why certain people age sooner than others

A．经理许诺不会对所提供的服务额外收费。 B．经理证实所提供的服务没有其他的改变。 C．经理确认没有对所提供的服务额外收费。 D．经理抱怨没有更多资金可用于提供服务。

A．compliance with B．complaints to C．compliance of D．complaints of

As one of the Society's six contributing photographers-in-residence, Karen seeks to focus【63】attention on global changes and how they【64】human health. One promising【65】is the anti-measles【66】in Kenya led by the American Red Cross, the Centers for Disease Control and Prevention, and UN【67】. "These photographers-in-residence have chosen subjects they've been【68】for years, subjects they're【69】about," says program manager Charlene Valeri. Frans Lanting investigates【70】and the danger of【71】loss to animals in the wild. David Coubilet works to promote the survival of coral reef【72】in the South Pacific. Sam Abell【73】North American rivers from a cultural, historical, and ecological【74】. Underwater photographer Emory Kristof will use【75】-operated vehicles to take inventory of deep ocean【76】in water off Indonesia. Annie Griffiths Belt is promoting【77】of wilderness areas in North America, both in and outside of classrooms. By speaking to【78】and displaying their work widely, the photographers hope to【79】public support for the Society's【80】. (41) A．contributors B．photographers C．columnists D．writers

W: Sure. Mary is active and sociable. Betty is the most talkative woman I've ever met. But guess what？ Helen's just the opposite. Q: What do we learn from the woman's remark about Helen？ (14) A．Helen is quiet. B．Helen is talkative. C．Helen is sociable. D．Helen is active.

A. By replicating the above mentioned reviews B.By presenting the best available clinical evidence for successful bonding of dental oxide ceramic restorations. C.By summarizing the huge variety of bonding methods used on dental oxide ceramics and their results in laboratory bond strength testing D.By summarizing published clinical trials on bonded oxide ceramic restorations and correlate their results with that of laboratory bond strength testing using the same bonding methods as in the clinical trials

A．arrival B．reaching C．arrive D．reach

对 错

对 错

B．很幸运，我们及时地找到了从事研究所需要的最完整的设备。