Most fatal accidents involve a disproportionately ( 不成比例的 ) high number of men unden the age of 25 . A report on young driver research prepared last year by Monash University - accident research centre found that , in 1990 and 1991 , almost a bird of the people killed in road crashes were drivers under 25 . Yet this age group represents only 14 percent of the population . The report , which also updated a review of international literature about , among other things , driver training , also reached what many would consider a startling cond usi on : Training and education pro no pally in the US do not appear to reduce younger drivers risk of crashing The Monash University researchers looked at the crash information from New South Wales for 1986 to 1990 from Victoria for 1984 to 1990 and from South Australia for 1986 to 1990 . The only Australian evidence which possibly indicates that counter - measures targeted specifically at young beginner drivers have been effective comes from evaluations of zero blood alcohol concentration legislation . The Monash researchers also looked the US road - crash in 九番 ation for 1989 on 6.6 million police - reported crashes involving fatal flies injuries and motor vehicle damage . The researchers looked at a sample of 44 000 crashes . The conclusion was that the available literature gives a pessimistic view of the effectiveness of driver training and education reflected in the In a blini ty to produce drivers safer than those who have not been trained . The Monash University s report about young drivers con duded that younger drivers were more likely to take risks at night younger men were more likely to take risks than younger women but younger women appeared to have greater skills deli den cy . Overall the researchers concluded that I appears that vehicle - control skills improve rapidly with increasing experience but that their development is still incomplete after one or two years and possible after considerably longer periodsA place where white has been made to representAll that is good and pure and fine and decent.Harsh was among the few “keenly interested in the welfare of their race". After she was made head of the Hall Branch.she continued to work in black neighborhood.Once middle-class,the neighborhood was home to poor. scarcely educated.recent arrivals from the South.She put her heart and soul into the library. But still, Harsh was plagued with doubts about he accomplishments.Two years after retirement. she died depressed.Yet it is through Harsh that numerous African Americans learned the meaning of preservin their own cultural heritage and the power of education to turn lives around.24.Why was Harsh asked to study specific libraries in 1934?A.To ask for donations from other libraries.B.To list the most important books about the black.C.To learn advanced library management experience.D.To find out how libraries served black communities in other cities.25.What do we know about Harsh?A.She herself was poorly educatedB.She worked as a historian the whole life.C.Her aim to change black people's life failed.D. She struggled for a better understanding of her race.26.What does the underlined word "plagued"in Paragraph 10 mean?A.TroubledB Questioned.C. Panicked.D.Pleased.27.Which of the following can best describe Harsh as a librarian?A. Cautious.B.Devoted.C.Generous.D.Mild.