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【单选题】
The mass media is a big part of our culture, yet it can also be a helper, adviser and teacher to our young generation. The mass media affects the lives of our young by acting as a (an)【1】for a number of institutions and social contacts. In this way, it【2】a variety of functions in human life. The time spent in front of the television screen is usually at the【3】of leisure: there is less time for games, amusement and rest.【4】by what is happening on the screen, children not only imitate what they see but directly【5】themselves with different characters. Americans have been concerned about the【6】of violence in the media and its【7】harm to children and adolescents for at least forty years. During this period, new media【8】, such as video games, cable television, music videos, and the Internet. As they continue to gain popularity, these media,【9】television,【10】public concern and research attention. Another large societal concern on our young generation【11】by the media, is body image.【12】forces can influence body image positively or negatively.【13】one, societaland cultural norms and mass media marketing【14】our concepts of beauty. In the mass media, the images of【15】beauty fill magazines and newspapers,【16】from our televisions and entertain us【17】the movies. Even in advertising, the mass media【18】on accepted cultural values of thinness and fitness for commercial gain. Young adults are presented with a【19】 defined standard of attractiveness, a(n)【20】that carries unrealistic physical expectations. (1)
A.
alternative
B.
preference
C.
substitute
D.
representative
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【简答题】零件图和工序图如下,指出本道工序的加工表面是哪两个,并分别写出两个加工面的工序基准、定位基准。
【多选题】某干法水泥生产线建设项目拟进行竣工环境保护验收。根据《建设项目竣工环境保护验收管理办法》,该建设项目符合竣工环境保护验收的条件包括( )。
A.
环境影响报告书及其批复文件等环境保护档案资料齐全
B.
全厂工艺粉尘达标排放。其排放总量符合核定的总量控制指标要求
C.
环境影响报告书要求的对厂界周边敏感点噪声影响达标的验证正在进行中
D.
旋转窑尾气净化装置和余热锅炉已按批准的环境影响报告书建成,经负荷试车检测合格
【单选题】在用节流阀的旁油路节流调速回路中,其液压缸速度( )。 A 、随负载增大而增加 B 、随负载减少而增加 C 、不受负载的影响 ,
A.
随负载增大而增加
B.
随负载减少而增加
【单选题】从楼梯平面图中可知,楼梯A的每个楼梯段的踏步面数为
A.
9
B.
10
C.
11
D.
12
【单选题】当垄断市场的需求富于弹性时
A.
边际收益与边际成本之间的差额较大
B.
边际收益与价格之间的差额较大
C.
边际收益与价格之间的差额为0
D.
边际收益与价格之间的差额较小
【简答题】世界上有哪些著名的“长寿村”?
【简答题】从键盘输入3个数,比较大小,输出最大的数。 @author: yangxj package Prog1; import java.util.*; public class Prog1 { public static void main(String[] args) { // TODO code application logic here int a=0,b=0,c=0,max=0; Scanne...
【多选题】当|Ed|=1时()。
A.
价格弹性是富有弹性的
B.
边际收益小于0
C.
价格弹性是单位弹性
D.
边际收益大于0
E.
边际收益等于0
【单选题】对边际收益与需求的价格弹性之间的关系的正确描述应该是:
A.
当需求缺乏弹性时,边际收益为负。
B.
当需求缺乏弹性时,边际收益为零。
C.
当需求缺乏弹性时,边际收益为正。
D.
当需求具有单位弹性时,边际收益为负。
E.
当需求完全有弹性时,边际收益为负。
【单选题】以下选项中,哪一个是对规模收益的准确表达?()
A.
生产成本弹性
B.
生产边际弹性
C.
生产时间弹性
D.
生产规模弹性
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