奶牛生产瘫痪的治疗方法包括（ ）。
A. 补钙疗法
B. 补糖疗法
C. 乳房内注入疗法
D. 乳房送风疗法
E. 百会穴注射硝酸士的宁
What did Chairman Mao Zedong start in 1963?
A national campaign to learn from Lei Feng.
B. A “Learn From Lei Feng Day”.
C. A debate on whether Lei Feng’s spirit lives on.
D. A role model for people to imitate.
Why do some people emphasize the importance of “me” in modern society?
A. Because they think Lei Feng’s spirit is outdated.
Because there is little ground for giving up one’s interests for others.
C. Because they misinterpret the significance of Lei Feng’s spirit.
D. Because they are self-centered and only think of themselves.
Why will the whole structure of our society be in danger if everyone turns a blind eye to social problems?
A. Because people in our society lack morality.
Because people in need don’t get help from others.
C. Because people don’t trust each other.
D. Because people’s behavior would harm our society.
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