【判断题】在路线测量中,转角通常是通过观测路线的右角来计算和确定的。()
【单选题】And the ITC works, according to the Advertising Association's James Aitchison. ( )
【单选题】And the ITC Code works, according to the Advertising Association's James Aitchison.
【简答题】交流异步电动机有哪些调速方式?并比较其优缺点。
【单选题】Advertising on the Internet works differently than .
【单选题】Monopolistic competitors often hire a celebrity spokesperson to advertise their product. One reason such advertising works is that:
A.
celebrities are better informed about the relative merits of different products than the rest of us.
B.
consumers assume that the celebrity has researched the product and that the claims being made on his or her behalf are true.
C.
the fact that a firm is willing to pay the large fees associated with celebrity advertising signals consumers that it is a major company and that it is therefore likely to have a reliable product.
D.
celebrities encourage other firms to enter the industry.