在LinuX操作系统中，cd.../..命令的作用是______。
A. 转到当前目录的上级目录
B. 转到根目录
C. 转到root日录
D. 转到当前日录的上两级目录
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( )是最适合中小企业的一种技术创新组织形式之一。
A. 内企业家
B. 技术创新小组
C. 新事业发展部
D. 企业技术中心
By saying "His idea was a success", the author means ______.
A. the school master made a lot of money and got rich
B. the school master became very famous among young students
C. more and more young people went to the hostel for summer holidays
D. more and more young students came to study at his school
Which of the following statements best describes the organization of the pas- sage
A statement illustrated by an analogy(类比).
B. A hypothesis supported by documentation(引用文献).
C. A comparison of two contrasting theories.
D. A critical analysis of a common assumption.
The author says children in the city seldom went to the woods and the fields because ______.
A. all these places were too far away for them to go
B. it was impossible for them to go and get back in one day
C. they were not old enough to take such a trip
D. they were not permitted to go to these places
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