下列选项中属于公安后勤保障工作的是( )。 A．技术保障 B．生活保障 C．信息保

有以下程序：void swap1(intc0[],intc1[]){ intt;t=c0[0];c0[0]=c1[0];c1[0]=t;}void swap2(int*c0,int*c1){ int t;t=*c0;*c0=*c1;*c1=t;}main(){inta[2]={3,5},b[2]={3,5};swap1(a,a+1);swap2(&b[0],&b[1]);printf("%d %d %d %d\n",a[0],a[1],b[0],b[1]);}程序运行后的输出结果是______。

A．3 5 5 3

B．5 3 3 5

C．3 5 3 5

D．5 3 5 3

男性，40岁，行胃大部切除术后，在进食加糖的牛奶10～20分钟后，觉剑下不适，心悸乏力，头晕，出汗，恶心呕吐以至虚脱，平卧几分钟后可缓解，最可能的诊断

A．颈部不适伴有四肢乏力，行走、持物不稳，并出现病理征
B．颈部疼痛伴右上肢放射性疼痛，右前臂及拇、示指麻木
C．颈部不适伴有头晕、恶心、呕吐，并出现Horner综合征
D．颈部疼痛伴有头痛、眩晕、视物障碍，偶出现猝倒
E．颈部疼痛伴上肢放射痛、四肢出现乏力，双下肢行走时有踩棉花感

Oceanography has been defined as “The application of all sciences to the study of the sea”. Before the nineteenth century, scientists with an interest in the sea were few .

　　 For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question 'What is at the bottom of the oceans?' had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile (起伏形状 ) of the route to estimate the length of cable that had to be manufactured. 

　　 It was to Maury of the US Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings (测深 ) were taken to investigate the depths of the North Atlantic and Pacific Oceans. Later, some of his findings aroused much popular interest in his book The Physical Geography of the Sea. 

　　 The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was taken out for repairs it was found to be covered in living growths, a fact which defied contemporary scientific opinion that there was no life in the deeper parts of the sea.

　　Within a few years oceanography was under way. In 1872 Thomson led a scientific expedition, which lasted for four years and brought home thousands of samples from the sea. Their classification and analysis occupied scientists for years and led to a five-volume report, the last volume being published in 1895.

　68. The passage implies that the telegraph cable was built mainly _________.

　A) for oceanographic studies

　B) for military purposes

C) for business considerations

　D) for investigating the depths of the oceans

69. The aim of voyages Maury encouraged in the 1840s was __________.

　A) to make some sound experiments in the oceans

　B) to collect samples of sea plants and animals

　C) to estimate the length of cable that was to be made

　D) to measure the depths of two oceans

70. 'Defied' in the 4th paragraph probably means ________

　A)   doubted        B)  gave proof to

　C)   challenged     D)  agreed to

71. This passage is mainly about _________

　A) the beginnings of oceanography

　B) the laying of the first undersea cable

C) the investigation of ocean depths

　D) the early intercontinental communications

关于合同的理解，错误的是( )。

A．合同是一种民事法律行为

B．合同以设立、变更、终止民事权利义务关系为目的

C．合同是平等主体的自然人之间设立的

D．合同是双方或者多方民事法律行为

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