Experts say, for example, that while men make up only a small fraction of elementary school teachers, a disproportionate number of elementary principals are men. Barbara Bergmann, an economist at the University of Maryland who has studied sex segregation at work, believes thats partly because of “sexism in the occupational structure” and partly because men have been raised to assert themselves and to assume responsibility. Men may also feel more compelled than women to advance, she suspects.

16.According to the passage, which statement is NOT true?
A. Men have taken jobs in female?ominated careers because these jobs were available.?
B. Physical labor jobs were not increasing.?
C. Men have taken jobs in female?ominated careers because these jobs pay more.?
D. Although the jobs in female?ominated careers pay lower, men still take them.?
17.The second paragraph suggests that ____.?
A. young people have more rigid ideas about male or female work than their parents do
B. both young people and parents have more rigid ideas about male or female work than their parents do
C. parents have less rigid ideas about male or female work than their children do?
D. young people have less rigid ideas about male or female work than their parents do
18.David Anderson says ____.?
A. he encountered some discrimination and ridicule when he was working as a secretary
B. he received encouragement and acceptance from the women secretaries?
C. men make better secretaries than women do

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