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186. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a total ban, given that many passengers want to work during flights. 187. The rise of multinational corporations(跨国公司), global marketing, new communications technologies, and shrinking cultural differences have led to an unparalleled increase in global public relation or PR. 188. The progress from a rattle used by a baby in 3000 BC to one used by an infant today, however, is not characterized by inventiveness. 189. Bent stripes(条纹), called chevrons(人字形) painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down. 190. Therefore, the task for DDB Needham was to encourage consumers to consider other aspects of train in order to change their attitudes and increase the likelihood that trains would be considered for travel in the west. 186、尽管有些航空公司禁止旅客在飞机起飞和降落的时候使用这些装备，考虑到许多旅客希望在飞行时工作，大多数公司还是不愿意全面禁止。 187、跨国公司，全球市场营销，新兴通讯技术和文化融合的发展，使全球公共关系或者说PR得到了不平行的发展。 188、公元前三千年的一个婴儿所发出的嘎嘎声到今天的婴儿的嘎嘎声的进步，并不能算是一种发明。 | 
