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您现在的位置:首页> 大学英语> 专业四级> 真题> 2013年专四作文真题附范文:节约花钱

2013年专四作文真题附范文:节约花钱

发布时间:2013-06-07 13:03浏览次数:33510
要求:
Most of us, as students, are careful with our money in daily life: we collect all kinds of coupons(优惠券); we look for group-buy deals if we eat out or travel; we don't buy clothes unless in a sale. However, some people think that all this may not make us smart consumers. What is your opinion?

You are to write in three parts.
In the first part, state specifically what your opinion is.
In the second part, provide one or two reasons or your experience (s) to support your opinion. 
In the last part, bring what you have written to a natural conclusion or make a summary.

You should supply an appropriate title for your composition.

Marks will be awarded for content, organization, language and appropriateness. Failure to follow the instructions may result in a loss of marks.

字数:300 满分:100分

用户的作文(系统评分1.0分
评语:

用户练习作文:

The bifurcation characteristics and chaotic behavior of a biped passive walker with knees are studied in detail. Employing the bifurcation diagram and the corresponding Floquet multiplier diagram, we identify the period-doubling bifurcation and saddle-node bifurcation present in the phase space, and solve the unstable periodic gait produced by these bifurcations according to the Newton-Raphson algorithm.

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