A. Reinforcement
B. Inter-generational communication
C. Social values
D. Recognition
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[问答题]Martin Luther King was a black minister,who became a great leader of theciv
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c
[单选题]Martin Luther King was a black minister, who became a great leader of the c