单项选择题
A. 100 yuan. B. 70 yuan. C. 80 yuan. D. 30 yuan.
A. save more on tuition B. receive a better education C. take more liberal-arts courses D. avoid traveling long distances
A. encourage others to be happier B. move their misfortune to others C. weaken the impact of misfortune D. help unlucky people deal with misfortune