单项选择题


Questions 17-20 are based on the following passage. You now have 20 seconds to read questions 17-20.
What is this passage mainly about

A．Approaches to the commercial use of computers.
B．Conveniences brought about by computers in business.
C．Significance of automation in commercial enterprises.
D．Advantage of credit cards in business.
<上一题 目录 下一题>
热门 试题

单项选择题
Why does the author use the saying Knowledge is power in the passage
A．Because the saying is the truest of all other sayings.
B．Because the author wants to emphasize the importance of the information explosion.
C．Because knowledge is more important than power in the information era.
D．Because knowledge equals to information in modern times.
单项选择题
A．aroundB．outC．offD．over
A．around
B．out
C．off
D．over
相关试题