单项选择题

According to the passage, most industries in the near past focused on ______.

A．the demands of the market
B．the efficiency of production
C．the preferences of consumers
D．the satisfaction of consumers

<上一题目录下一题>

热门试题

填空题

In India more than one hundred languages are spoken, of which only fourteen __________________ (被认为是官方语言).

填空题