【填空题】
24104.___CSMA 的 1-坚持退避算法缺点是介质的利用率较低。
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【填空题】
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【填空题】
24143.___项目质量管理是指为使项目能达到用户满意的预先规定的质量要求和标准所进行的一系列管理与控制工作。包括进行质量规划，安排质量保证措施，设定质量控制点，对每项活动进行质量检查和控制等。
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