单项选择题

Consumption of the total life-cycle effort in software maintenance is ______ that in software development.

A．less than
B．larger than
C．equal Or less than
D．equal or larger than
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单项选择题
Which of the following is not part of a modern quality management concept ______
A．Performance standard is zero defects
B．Quality must be inspected in
C．85% of failures occur because of the process, not the worker
D．Quality is a 4 cycle process - plan/do/check/act
单项选择题
The ______ has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.
A．application
B．information system
C．operating system
D．iterative
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