【简答题】完形填空。 The population problem may be the __ 1 __ one of the world today. The world's population is growing __ 2 __ . Two thousand years ago, there were only 250 million people __ 3 __ the earth. Four h...
【单选题】Everything in today's world is going faster and faster, and television commercials are no exception. At the start of the television age the standard commercial lasted 60 seconds, but most of today's c...
A.
Although most television commercials look and straightforward, they typically take a great deal of time, effort, and money to produce.
B.
Because the development of television commercials involves so many steps, commercials are among the most difficult and complex types of fihn to produce.
C.
The major factors in developing a successful television commercial are good planning of style. and content and careful selection of actors.
D.
A reduction in the average length of television commercials has made their development more complex and costly than it used to be.