网络系统的五阶段生命周期一次迭代包括：需求规范、通信规范、逻辑网络设计、物理网络设计和实施阶段共五个阶段。()
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年终结账以后，总账和日记账应当更换新账，明细分类账一般也应更换，但有些明细账可连续使用不必更换。()
可变荷载的标准值由数理统计方法确定，通常要求有()的保证率。
What started the move towards supersizing in the fast food industry？
After inducing people to overeat.
B. The rise of the "heavy users".
C. Studies identifying the heavy user.
D. When price slashing occurred.
The author is convinced that accent is______.
A. something we are born with
B. something that cannot be changed by people easily
C. something we cannot speak without unless we are acting
D. something we adopt from the current group with which we reside
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