[单项选择]Since the redesign of the assembly line, the productivity ______.


A. is improved
B. improves
C. is improving
D. has been improved.

[单项选择]The background music in an assembly line is designed ______.


A. being not listened to
B. not being listened to
C. to be not listened to
D. not to be listened to

[单项选择]When the new assembly line is complete, the factory will turn ______ one thousand cars per day.
A. in
B. off
C. out
D. over

[单项选择]

Text 4
The traditional distinction between products that satisfy needs and those that satisfy wants is no longer adequate to describe classes of products. In today’s prosperous societies the distinction has become blurred because so many wants have been turned into needs. A writer, for instance, can work with paper and pencils. These are legitimate needs for the task. But the work can be done more quickly and efficiently with a word processor. Thus a computer is soon viewed as a need rather than a want.
In the field of marketing, consumer goods are classed according to the way in which they are purchased. The two main categories are convenience goods and shopping goods. Two lesser types are specialty goods and unsought goods. It must be emphasized that all of these types are based on the way shoppers think about products, not on the nature of the products themselves. What is regarded as a convenience item in France( wine, for example)may be a specialt
A. that people are in constant need of
B. that people do not really want
C. that people want but don' t need
D. that are convenient to purchase