A．take awayB．take inC．take offD．take up
A. take away
B. take in
C. take off
D. take up
The passage supports which of the following conclusion？
A. Without formal education, people would remain ignorant.
B. Education systems need to be radically reformed.
C. Going to school is only part of how people become educated.
D. Education involves many years of professional training.
设系统中A类资源有10个实例，B类资源有5个实例，又设系统中有5个进程P1、P2、P3、 P4、P5。在某一时刻T0，系统状态如下：
A. P2P3P5P4P1
B. P2P4P5P1P3
C. P4P3P1P5P2
D. P5P1P3P4P2
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