中央型肺水肿典型X线征象是（ ）A．双肺大小不一的弥漫性片状模糊影 B．双肺下野可见

作业成本法把成本核算深入到（），以此来计算物流成本。

A.区域层次 

B.车间层次 

C.小组层次 

D.作业层次

[说明] Kruskal算法是一种构造图的最小生成树的方法。设G为一无向连通图，令T是由G的顶点构成的于图，Kmskal算法的基本思想是为T添加适当的边使之成为最小生成树：初始时，T中的点互相不连通；考察G的边集E中的每条边，若它的两个顶点在T中不连通，则将此边添加到T中，同时合并其两顶点所在的连通分量，如此下去，当添加了n-1条边时，T的连通分量个数为1，T便是G的一棵最小生成树。 下面的函数void Kruskal(EdgeType edges[],int n)利用Kruskal算法，构造了有n个顶点的图 edges的最小生成树。其中数组father[]用于记录T中顶点的连通性质：其初值为father[i]=-1 (i=0,1,…,n-1)，表示各个顶点在不同的连通分量上；若有father[i]=j，j＞-1，则顶点i，j连通；函数int Find(int father[],int v)用于返回顶点v所在树形连通分支的根结点。[函数]#define MAXEDGE 1000typedef struct{ int v1; int v2;}EdgeType;void Kruskal(EdgeType edges[],int n){ int father[MAXEDGE]; int i,j,vf1,vt2; for(i=0;i＜n;i+ +) father[i]=-1; i=0; j=0; while(i＜MAXEDGE && j＜ (1) ) { vf1=Find(father,edges[i].v1); vf2=Find(father,edges[i].v2); if( (2) ) { (3) =vf1; (4) ; printf("%3d%3d\n",edges[i].v1,edges[i].v2); } (5) ; }}int Find(int father[],int v){ int t; t=v; while(father[t]＞=0) t=father[t]; return(t);}

某施工单位承建一台中型散装水冷壁式锅炉工程。其安装内容包括：锅炉钢架、汽包、水冷壁、过热器、省煤器、给水泵、筑炉、烘炉、煮炉及试运行等。安装过程中，该施工单位根据设计要求进行了以下工作：锅炉设备基础验收、安装测量控制、锅炉钢架和本体安装、筑炉工序交接及筑炉安全措施等。由于选用的施工标准、规范正确且执行严格，对施工过程中出现的安全情况能作正确的判断和处理，从而保证了锅炉一次试运行成功。

锅炉钢结构分部工程竣工验收的合格质量标准：各分项工程质量应符合合格质量标准，（），有关观感质量应符合相应的质量标准等。

A．技术交底记录完整

B．质量控制资料和文件应完整

C．施工日志完整

D．资源配置记录完整

下列药物中在水处理时应少泡多润的有：（）

A.天南星

B.大黄

C.甘草

D.槟榔

E.秦皮

It seems incredible to me that Latin is not taught in schools as a matter of course, especially in a country that is forever lamenting its own (undeniable) mediocrity when it comes to speaking foreign languages. As a 13-year-old, I hardly approached my own Latin lessons with anything resembling enthusiasm—I might have been keener if Aeneas went to the shops occasionally—but I am terrifically grateful I had them, all the same.
The benefits are many. Having a basic grounding in Latin makes learning Romance languages a doodle(轻而易举的事): the fact that I speak English plus three others has less to do with any genetic predisposition—I was hopeless at learning Russian—than with an understanding of the root and provenance of Latin-derived words.
It would be impossible to have a smattering of Latin and find oneself stuck in Italy, provided one managed to persuade the speaker to slow down a bit. And the reason I can (arguably) just about string a sentence together in English—which isn’t my first language—has a great deal to do with understanding, through Latin, the way sentences and grammar work.
Latin also has its own pleasing internal logic: you follow the rules and you get the answer. And I really believe that if you know Latin, you half-speak French already. The British used not to be appalling at languages: my theory is that they only became so during the past century, when Latin stopped being widely taught.
Detractors(恶意批评者) might point out that there is little use in learning a dead language. But Latin is not dead: it’s everywhere. It makes the kind of people who never use two short words when six big ones will do intelligible. It demystifies jargon and legalese. It helps with crosswords. It even forces those of us who are pathologically illogical to think logically every once in a while: I remember the pleasure I felt at school, during Latin translation, when I realized I could create order and sense out of apparent chaos.
Really, Latin’s useful applications are manifold. Watching Who Wants To Be A Millionaire a few weeks ago, I noticed that the question which felled the contestant would almost certainly not have stumped him had he had some Latin. Of all the possible answers, only one had a Latin root that echoed the question. From Cicero to Chris Tarrant in a few easy steps, you can’t say more modem or less dusty than that.

In paragraph 3, the author believes that knowing a little about Latin helps one ______.

A．to speak Italian better

B．to figure out what an Italian says

C．to understand Italian history

D．to make friends with Italians