牛生产瘫痪病的诊断依据包括（ ）
A. 多为3～6胎的高产奶牛
B. 大多在产后3天之内发病
C. 出现特征性的瘫痪姿势、意识抑制、反射减弱或消失
D. 血钙降低
E. 通过乳房送风有良好效果
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A. Because they think Lei Feng’s spirit is outdated.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.
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