[判断题][判断题]依据《中国南方电网有限责任公司电力安全工作规程》，绝缘杆的工频耐压试验周期是半年。()
A.正确
B.错误

Text 3
Advertising is a form of selling. For thousands of years there have been individuals who have tried to persuade others to buy the food they have produced or the goods they have made or the services they can perform.
But the mass production of goods resulting from the Industrial Revolution in the 19th century made person - to - person selling less efficient than it previously was for most products. The mass distribution of goods that followed the development of rail and highway systems made person - to - person selling too slow and expensive for almost all companies. At the same time, however, a growth in mass communication occurred first in newspapers and magazines, then radio and television that made mass selling possible. Advertising, then, is merely selling or salesmanship functioning in the paid space or time of various mass communication media.
The objective of any advertisement is to convince people that it is in their best interests to
A. advertisement often persuades people to buy what they don' t really want
B. advertisement can never really influence people's ability to decide
C. whether to buy an advertised product is up to the would - be customer
D. the effect of an advertisement on the public is difficult to determine