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当前学科：水轮发电机机械检修工(中级)
题目：
单选
励磁机是一种专门设计的（）发电机。
A . 交流；
B . 直流；
C . 整流；
D . 交直流；
答案：
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推荐知识点:
最先在理论上将班级授课组织确立起来的则是捷克教育家夸美纽斯，时间：17世纪上半叶。（）
由于是高层建筑．施工工序多而复杂．在施工前需由（）组织进行图纸会审，并应形成会审记录。
盗窃信用卡并使用的，按照信用卡诈骗罪定罪处罚。（）
根据以下材料回答题： Age DiscriminationBy the year 2000 nearly half the workforce in Europe are over 40 and yet throughout Europe there is a deep ambivalence ( 犹豫 )-if not outright suspicion-towards the capabilities of older workers.Those over the age of 40 generally take longer to find new employment, but European governments have done little to protect their employment rights. Only Germany, with incentives to business to encourage the employment of older people, and France, with the introduction of legislation making it illegal to use age barriers in recruitment-or to make employees redundant because of their age done anything substantive to combat age discrimination.Yet even in these two countries, there has been no noticeable improvement in the lot of the older workers; indeed, in France, job advertisements flout ( 轻视，反对 ) the law openly by asking for applicants of a certain age. So, should France and Germany be tightening up their laws and should the rest of Europe follow suit?Bill Robbins, a careers consultant said, "Legislation against age discrimination has been in existence for well over ten year in the U.S. and Canada, but has had no effect. Employers will always be able to find some reasons for turning down an older applicant without appearing to break the law."Ironically, it was governments which played a leading role in hardening business culture against older workers in the first place. In the late 1970s, many European countries were extremely concerned about the levels of youth unemployment, and France, Germany and Belgium even initiated incentive schemes for businesses to encourage older employees to take early retirement provided that younger trainees were taken on in their place. As more and more employees took early retirement, often willingly, a new, youth-oriented culture permeated business throughout most of Europe-even in those countries that had taken no active measures to promote it.Demographic ( 人口统计学的 ) trends mean that governments are now anxious to slow down the policy of early retirement as they realize that they simply do not have the funds to meet their pension promises. But reversing business attitudes is no easy matter. Dianah Worman a policy adviser said, "There is a widely held belief that older people are less, adaptable and trainable. This is just not true: research has shown that differences in capability are as wide within age groups as they are between them."Which of the following words can best describe the European attitude to older workers?
对于容量大于10MVA的变压器，轻瓦斯保护的整定容积为多少？
妊娠合并心脏病者的分娩期处理，下列不正确的一项是()
正式把“体操科”改名为“体育科”的是在()。
SDH网元设备包括（）。
在电导率测定的影响因素中，温度的影响不包含（）。