[简答题]Both research and practical experience have shown that a （）(均衡的饮食对健康是必不可少的).

[简答题]Both research and practical experience have shown that a (均衡的饮食对健康是必不可少的).

[单项选择]To search for work experience or practical learning, one must get
A. forms OWl and OW5
B. forms OW21 and OW22
C. forms OWl and OW21
D. forms OW5 and OW22

[填空题]Research has shown that foreign cigarettes do taste better to Asian smokers than native brands.

[单项选择]Research has shown that attachment is important to later (47)______ development. The securely attached child is more independent, more cooperative, less rigid, and basically happier than other children. This is contrary to earlier beliefs that the parent must "push the child out of the nest" to encourage independence. Research supports the need for parents to provide a (48)______ base; only there will the child feel confident enough to (49)______ out alone. Independent exploration is essential to a child’’s emotional and (50)______ growth. Today, when more than 50 percent of mothers with children under the age of five work outside the home, the issue of attachment has become (51)______ to the argument over whether day care is harmful to children. Some psychologists (52)______ that day care for children under one year of age is detrimental to their secure attachment and will (53)______ affect their emotional development. Others have found that the quality of day care is t

[填空题]Research has shown that twins are more likely to have problems with language skills than single babies.

[填空题]Research has shown that two-thirds of human conversation is taken up not with discussion of the cultural or political problems of the day, not heated debates about films we’ve just watched or books we’ve just finished reading, but plain and simple __51__. 　　　Language is our greatest treasure as a species, and what do we __52__ do with it We gossip. About others’ behaviour and private lives, such as who’s doing what with whom, who’s in and who’s out-and why; how to deal with difficult __53__ situations involving children, lovers, and colleagues. 　　　So why are we keen on gossiping Are we just natural __54__, of both time and words Or do we talk a lot about nothing in particular simply to avoid facing up to the really important issues of life It’s not the case according to Professor Robin Dunbar. In fact, in his latest book, Grooming, Gossip and the Evolution of Language, the psychologist says gossip is one of these really__55__issues. 　　　Dunbar __56__ the traditional view that l
A. A．measure
B．show
C．maintain
D．ease