Due to the unpredictable fluctuations and bushiness of traffic flows within networks , congestion may occur frequently 它结合了电路网络和计算机网络的优点，能承载语音、数据和图像等多种业务。
2.
In fact , he should be wholly objective in assessing the needs of the bushiness and the requiem mending skills for balancing board talents , and avoid any material relation with the corporate or senior managers which may affect his conclusion 按理想模式，独立董事应具有一定的管理经验和法律、财务方面的专长，且要求其不得与公司及高级管理人员有任何会影响其独立判断的实质性联系。
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Second chapter analysis the scientific misconduct reason . firstly , it lack science spirit . science spirit is basic moral norm that scientist set up and agreement norm for science study . because of many kinds reasons , the science spirit in the our country ca n ' t develop well , make the growth of science spirit in our country exist serious drawback , cause scholarship atmosphere not well . secondly , the scholarship judge rules have serious drawback . the manage way of quantity not used well for the scholarship management . the quality of the spirit product ca n ' t definition or measure by their quantity . the present scholarship of encourage system exist utility phenomenon , but impatient of scholarship management is the sources that produce large quantity plagiarize . the scholarship periodical uses the manuscript period over long , cause one manuscript give to some periodical . third reason is lacks of supervise , control and make track for the system of punish . the fourth is an administration management to act for the scholarship manages administration right dominate scholarship bushiness , cause official " look for rent " behavior 由于种种原因，科学共同体的科学精神在我国一直无法得到充分的发展，使得我国学术界的科学精神气质的发育存在着严重的缺陷，由此导致了学风不正。其次是学术评价机制也存在严重的缺陷，量化管理方式并不适用于学术管理。学术研究者的精神产品的质量和绩效是无法用数量来界定或衡量的，高校的评价机制同样存在严重的缺陷，现在的学术鼓励制度，存在着明显的急功近利现象，而急于求成的学术管理正是产生大量学术剽窃、论文抄袭现象的根源之一。
