电源频率降低时，电流互感器的变比误差和角度误差均减小。

[单选题]Passage1In the 2006 film version of The Devil Wears Prada, Miranda Priestly, played by Meryl Streep, scolds her unattractive assistant for imagining that high fashion doesn't affect her, Priestly explains how the deep blue color of the assistant's sweater descended over the years from fashion shows to departments stores and to the bargain bin in which the poor girl doubtless found her garment.This top-down conception of the fashion business couldn't be more out of date or at odds with the feverish world described in Overdressed, Elizabeth Cline's three-year indictment of "fast fashion". In the last decade or so, advances in technology have allowed mass-market labels such as Zara,H&M, and Uniqlo to react to trends more quickly and anticipate demand more precisely. Quicker turnarounds mean less wasted inventory, more frequent release, and more profit. These labels encourage style-conscious consumers to see clothes as disposable-meant to last only a wash or two, although they don't advertise that-and to renew their wardrobe every few weeks. By offering on-trend items at dirt-cheap prices, Cline argues, these brands have hijacked fashion cycles, shaking an industry long accustomed to a seasonal pace.The victims of this revolution, of course, are not limited to designers. For H&M to offer a $5.95 knit miniskirt in all its 2,300-pius stores around the world, it must rely on low-wage overseas labor, order in volumes that strain natural resources, and use massive amounts of harmful chemicals.Overdressed is the fashion world's answer to consumer-activist bestsellers like Michael Pollan's The Omnivore's Dilemma."Mass-produced clothing, like fast food, fills a hunger and need, yet is non-durable and wasteful,"Cline argues. Americans, she finds, buy roughly 20 billion garments a year-about 64 items per person-and no matter how much they give away, this excess leads to waste.Towards the end of Overdressed, Cline introduced her ideal,a Brooklyn woman named Sarah Kate Beaumont, who since 2008 has made all of her own clothes-and beautifully. But as Cline is the first to note, it took Beaumont decades to perfect her craft; her example can't be knocked off.Though several fast-fashion companies have made efforts to curb their impact on labor and the environment-including H&M, with its green Conscious Collection line-Cline believes lasting change can only be effected by the customer. She exhibits the idealism common to many advocates of sustainability, be it in food or in energy. Vanity is a constant; people will only start shopping more sustainably when they can't afford not to.The word"indictment"(Para.2) is closest in meaning to_______.

[判断题]履约保证保险贷款应根据借款人生产经营的规模和周期特点，合理设定贷款期限，一般不超过一年，最长不超过3年。

[填空题]内容多属于公文范围的文献是（）。

[单选题]函数Sgn（3.1416）的返回值是（）。 

[单选题]（）是指一个作用同时导致有用及有害两种结果。

[多选题]主张“物主承担风险”原则，把货物风险的承担同所有权的归属联系在一起的有（）。

[问答题]泽兰汤2功效与作用

[判断题]早产/低出生体重儿头3个月每天应补充维生素D800-1000IU。

[多选题]（）应当接受海关监管。

[填空题]《蜕变》中的两个立志改革的爱国志士形象是专员（）和医生（）。

[单选题]若保持电源电压不变，降低频率，电动机的工作电流会（）。

[问答题]电源频率降低，其他各量不变，试分析变压器铁心饱和程度、励磁电流、励磁电抗、漏抗的变化情况。

[判断题]电源频率降低时，电流互感器的电流误差和相位误差均增大。

[判断题]电源频率降低时，电流互感器的变比误差和角度误差均减小。

[判断题]电源频率降低时，电流互感器的电流误差和相位误差均增大。

[问答题]电源频率降低，其他量不变，试分析变压器铁心饱和程度、励磁电流、励磁电抗和漏抗的变化情况是怎么样的？

[单选题]电源频率降低时，电流互感器的变比误差和角度误差（）。 

[判断题]电源频率降低时，电流互感器的变比误差和角度误差均减小。

[单选题]电源频率降低时，电流互感器的变比误差和角度误差（）。 

[问答题]电源频率降低对异步电动机的运行有什么影响？