Questions 15 to 19 are based on the following passage.
The biggest safety threat facing airlines today may not be a terrorist with a gun , but the man with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radio and cassette players and mobile telephones. RTCA, an organization which advises the aviation (航空) industry, has recommended that all airlines ban (禁止) such devices from being used during "critical" stages of flight, particularly take-off and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such
A. Because it is extremely dangerous to conduct such research on an airplane
B. Because it remains a mystery what wavelengths are liable to be interfered with.
C. Because research scientists have not been able to produce the same effects in labs
D. Because expert lack equipment to do such research.
| 鉴证人员鉴证结论书送达是否存在不妥之处 |
One of the political issues we hear a lot about lately is campaign finance reform. The people who are calling for (21) usually want the government to pay for campaigns and/or limit the mount of money that candidates and their supporters can spend.
One reason that reform is (22) for is that it costs so much to run for political office. Candidates have to spend a great deal of time and effort (23) money. The incumbents (those already in office) have (24) time to do their jobs since they must attend so many fund raising events.
Another (25) is the fear that candidates will be owned or controlled by the "special interest groups" that contribute to their campaigns. Sometimes this certainly seems to be the (26) .
On the (27) side are those who caution that just because you call something "reform," doesn’t mean it’s really (28) . They (29) that our right to freedom of s
A. reporters
B. wall
C. story
D. public
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，决定在每晚加班两个小时赶工。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《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。
关于临时用电的检查验收；说法正确的有（）。我来回答:
