轿厢在两端站平层位置时,轿厢、对重的撞板与缓冲器顶面间的距离,耗能型缓冲器应为().
A.150~350
B.200~350
C.150~400
D.200~400
参考答案:C
阅读材料,回答下列问题。
材料一:2008~2010年我国GDP增长率及投资、消费、净出口对GDP增长的贡献率
材料二:党的十七届五中全会提出,要建立扩大消费需求的长效机制,调整优化投资结构,加快形成消费、投资、出口协调拉动经济增长的新局面。在投资、消费和出口“三驾马车”中,消费需求是最终需求,是拉动经济增长最稳定、最持久的动力。努力扩大消费需求是解决当前经济增长动力不足的关键途径,也是转变经济发展方式,促进经济增长由主要依靠投资、出口拉动向依靠消费、投资、出口协调拉动转变的长远发展战略。
(1)描述材料一所反映的经济现象。
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(2)分析党重视扩大消费需求的《政治生活》依据。
(3)结合材料二,运用唯物辩证法的有关知识,谈谈我国应如何促进经济的发展。
Flow control is a function that prevents network congestion by ensuring that (66) do not over-whelm (67) with data. There are three commonly used methods for handling network congestion. (68) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (69) are used by receiving devices to help prevent their buffers from overflowing. (70) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.
(69)是()
A. Buffer
B. Source-quench messages
C. window
D. Windowing
E. Buffering