[单项选择]Most parents prize the diversity within their children’s public schools. They know that learning to cooperate and excel in a diverse, real-world setting is a key to success in the 21st-century workplace and marketplace.
But how "diverse" and "real-world" is a school that does not have any minority teachers The bad news today is that some 40 percent of America’s public schools have no teachers of color. The good news is that we have an opportunity to recruit and encourage more Americans of color to enter the teaching profession. And our success in doing so can have a powerfully positive impact on student achievement.
Obviously, a teacher’s effectiveness depends, first and foremost, on his or her skills and high expectations, not on the teacher’s color. Yet we also know that children of color—40 percent of the student population and rising—benefit in important ways by having some teachers who look like them, who share similar cultural experiences, and who serve as role models d
A. restricted
B. boring
C. pleasant
D. unforgettable

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