To the author, the best thing that shows how a man is full of contradictions is the matter of sleep.()
To the author, the best thing that shows how a man is full of contradictions is the matter of sleep.()
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It is reported that the film __________ this Saturday in some large cities. A.is to showB.is to be shownC.is showingD.shows
You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?A．Full-duplex Ethernet consists of a shared cable segment. Half-duplex provides a point-to-point linkB．Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receiveC．Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidthD．Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex Ethernet uses a jam signalE．None of the above
—Which subject do you like______?—I like chemistry than any other one.A. better, betterB. best, betterC. best, bestD. better, best
The results of the examination ________ that you have all made great ________. A.shows...progressesB.show...progressesC.show...progressD.shows...progress
阅读下列函数说明和C代码，填入(n)处字句，并回答相应问题。[说明]背包问题就是有不同价值、不同重量的物品n件，求从这n件物品中选取一部分物品的选择方案，使选中物品的总重量不超过指定的限制重量，而且选中物品的价值之和为最大。背包问题是一个典型的NP完全难题。对该问题求解方法的研究无论是在理论上，还是在实践中都具有一定的意义。如管理中的资源分配、投资决策、装载问题等均可建模为背包问题。常用的背包问题求解方法很多，但本题中采用了一种新的算法来求解背包问题。该算法思想为：首先要对物品进行价重比排序，然后按价重比从大到小依次装进包裹。这种方法并不能找到最佳的方案，因为有某些特殊情况存在，但只要把包中重量最大的物品取出，继续装入，直到达到limitweight，这时的物品就是limit weight的最大价值。这种算法不需要逐个进行试探，所以在数据非常大时，执行效率主要由排序的时间复杂度决定。该算法的流程图为图11-4。仔细阅读程序说明和C程序流程图及源码，回答问题1和问题2。[流程图11-4][程序说明]struct Thing：物品结构typedef struct Bag：背包结构类型input ( )：将物品按序号依次存入数组函数inbag ( )：物品按物价比入包函数init ( )：初始化函数sort ( )：对物品按价格重量比排序函数outbag ( )：取出包中weiht最大的物品函数print ( )：最佳方案输出函数[C程序]define N 255struct Thing {double weight;double value;double dens;}thing[N];typedef stmct Bag {Thing thing [N];double weighttmp;double sumvalue;}bag,best;inbag ( ){do{bag.thing[i]=thing[i](1)(2)i++;}while ( (3) )}init ( ){for (inti=0; i＜N; i++){input (thing[i].weight, thing [i].value)thing [i].dens=thing[i].value/thing [i].weight;};}main ( ){init ( );sort ( );inbag ( );do {best=bag; //把包中物品放入暂存数组outbag ( ); //取出包中weight最大的物品(4)}while ( (5))print (best)； //输出temp因为是最佳方案}根据程序说明及流程图、部分C源码，充分理解算法思想，填入(n)处。
Whichofthefollowingrolesmustbegrantedtoausertoperformafulldatabaseimport?() A.CONNECTB.IMP_FULL_DATABASEC.FULL_EXPORT_PRIVSD.RESOURCEE.FULL_IMPORT_PRIVS
2、在用man命令查看一个命令的帮助文档的时候下列哪部分中有命令的用法说明？A．DESCRIPTIONB．COPYRIGHTC．SEE ALSOD．AUTHOR