[单项选择]Questions 44-50 As the twentieth century began, the importance of formal education in the UnitedStates increased The frontier had mostly disappeared and by 1910 most Americanslived in towns and cities. Industrialization and the bureaucratization of economicline life combined with a new emphasis upon credentials and expertise to make schooling increasingly important for economic and social mobility. Increasingly, too, schoolswere viewed as the most important means of integrating immigrants into Americansociety. The arrival of a great wave of southern and eastern European immigrants at the turn of the century coincided with and contributed to an enormous expansion of formal schooling. By 1920 schooling to age fourteen or beyond was compulsory in moststates, nd the school year was greatly lengthened. Kindergartens, vacation schools,extracurricular activities, and vocational education and counseling extended theinfluence of public schools over the lives of students, many of whom in the
A. different groups needed different kinds ofeducation
B. special programs should be set up infrontier communities to modernize them
C. corporations and other organizationsdamaged educational progress
D. more women should be involved ineducation and industry