题目内容
某工厂的机电安装工程由某机电公司负责。由于工程施工时间有限，施工单位为尽快完成任务，决定在每晚加班2h赶工。因施工现场用电设施不全面，影响施工质量，于是施工单位向供电部门申请临时用电，并根据国家有关标准、规范和施工现场的实际负荷情况，编制施工现场《临时用电施工组织设计》，并向当地电业部门申报用电方案。施工单位依照《中华人民共和国电力法》安装用电计量装置，按照《施工现场临时用电安全技术规范》用电，并进行检查验收，既保证了用电安全，也保证了施工质量，取得很好的效果。 临时用电的检查内容包括（）。
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利用公开密钥算法进行数字签名时，发送方签名用的是（）。
In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the (71) data circuit, which together enable data (72) . So-called protocol means, in short, a set of rules that determines the behavior of functional units in achieving communication.Data circuit, however, consists of a pair of (73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of (74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment (75) to a DCE at the data switching exchange or dam concentrator location. （73）处填（）。
It’s nearly midnight in the big city. But the big city is not (36) . The sidewalks are crowded with people. Some are (37) the movies, the plays, and the concerts. Some are stopping to look in the bright store windows. Some are waiting for buses and taxis. The (38) are filled with people. The hotels are filled with (39) and businessmen who have come from all over the world. Many people work at night in the big city. Bright lights are shining from the windows of the tall buildings. In newspaper offices, reporters are (40) up their stories and editors are (41) over their copy. In hospitals, night nurses are making their usual (42) . In the fire stations, an (43) is waking up the firemen. A fire has just broken out somewhere in the big city. (44) .Taxis are taking tired people from the airport and the railroad stations to the hotels. (45) .Trucks are bringing fresh fruit and vegetables into the city. Ships loaded with food and fuel are tied up at the dock. (46) .But they are never deserted in the big city.
某管道安装工程项目。该管道工程属于超高层建筑管道工程，由于施工项目经理部严格执行超高层建筑管道施工的技术要点，使得工程进展非常顺利，施工质量达到各项要求。管道安装完毕后，对其进行了系统试验，试验时的有关实施过程如下：(1) 采用闪点为40℃的可燃液体介质对管道进行液压试验；(2) 在进行液压试验时其环境温度为2℃；(3) 在进行气压试验时，承受内压钢管的试验压力为设计压力的2.15倍；(4) 泄漏性试验合格后进行真空度试验。 输送何种物质的管道必须进行泄漏性试验？
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