下列成就并非是拉扎斯菲尔德的贡献的是().
A.提出两级传播模式
B.出版《人民的选择》
C.守门人理论
D.提出“微弱效应论”“舆论领袖”等理论和概念
参考答案:C
28.The comedy Tooth Fairy is based on the story all western children know: If a kid leaves a tooth under their pillow, they’ll receive a visit from the tooth fairy, who takes the tooth and leaves a gift ________.
A.in general
B.in exchange
C.in total
D.in common
好干部标准中的“为民服务”内涵是什么?