在感性负载上并联电容可以提高功率因数,一般要求高压供电时,功率因数要达到0.9以上,

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问题:

在感性负载上并联电容可以提高功率因数,一般要求高压供电时,功率因数要达到0.9以上,低压供电时要达到()以上。

考点:一级注册建筑师建筑物理与建筑设备(一级)建筑物理与建筑设备(一级)题库
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(8分)反应在容积不变的密闭容器中达到平衡,且起始时A与B的物质的量之比为a:b。则

(1)平衡时A与B的转化率之比是      

(2)若同等倍数地增大A、B的物质的量浓度,要使A与B的转化率同时增大,(a+b)与(c+d)所满足的关系是(a+b)     (c+d)(填“>”、“=”、“<”或“没关系”)

(3)设定a=2,b=1,c=3,d=2,在甲、乙、丙、丁4个相同的容器中A的物质的量依次是2mol、1mol、2mol、1mol,B的物质的量依次是1mol、1mol、2mol,2mol ,C和D的物质的量均为0。则在相同温度下达到平衡时,A的转化率最大的容器是     (填容器序号,下同),B的转化率由大到小的顺序是        

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关于三阶梯下列哪项不妥

A.第一阶梯代表药物是阿司匹林

B.第二阶梯代表药物为可待因

C.第三阶梯代表药物是哌替啶

D.要重视心理治疗

E.常采取联合用药的方法

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下列符号中,既可用来表示一种物质,又可用来表示一种元素,还可用来表示一个原子的是  [ ]

A.C

B.O

C.2C

D.CO

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Unemployment in Europe has recently hit record highs. Although Denmark has been protected from economic problems thanks to its low public debt, qualified (有资格的) professionals are still finding it tough to get a job. Danish marketing firm Reputation Copenhagen has come up with a way of helping academics get noticed -- putting them on display (展示) in storefront windows.

Many highly-trained professionals, ranging from former CEOs to lawyers and tax experts, are currently finding it increasingly difficult to find proper employment on the Danish job market. Some of them have been trying for years, leaving their resumes (简历) with dozens of companies, without ever hearing back from them, and are now at a point where they are willing to try anything, even putting themselves in display windows like goods, hoping to get noticed.

Alexander Peitersen, managing director of Reputation Copenhagen, came up with the idea of using his company's office as a storefront for the campaign (活动), as there are many businesses nearby that might be interested in the talents on display. So he set up a small desk, put up the “an available academic is sitting here” sign and asked the unemployed to just sit in the windows like goods. It seems like a pretty desperate measure, but at least it works. According to the agency's website, three of the jobseekers in their window display got a job in a day or two.

Peitersen says he came up with the idea after realizing human resource managers get hundreds of job applications every day, which look more or less the same, and that creative thinking is required in order to increase the chances of finding employment. Apart from companies interested in qualified job-seekers, the campaign has also attracted the attention of both local and international media.

小题1:Which of the following words can be used to describe Peitersen?

A.Independent.

B.Creative.

C.Sensitive.

D.Cautious.小题2:Some job-seekers are willing to put themselves in the windows to display in that ______.

A.they think it is fashionable

B.their parents ask them to

C.it’s increasingly difficult to get hired

D.they find it’s interesting小题3:It can be Inferred that ______.

A.no companies show interest in the qualified job-seekers in the windows

B.both local and international media don't agree with the campaign

C.human resource managers have to reply to hundreds of applicants

D.to some degree the window displays help people find jobs小题4:What is the text mainly about?

A.Job-seekers are displayed in the windows hoping to get hired.

B.The rate of unemployment in Europe has recently become hitter.

C.It is hard for qualified professionals to get a job.

D.Denmark has avoided economic problems due to its low public debt.

题型:填空题

太平洋IC借记卡是磁条与芯片为一体的双界面卡,卡下开立备用金账户和电子现金账户,账户类别码分别是(),均归属“220卡备用金存款”科目。

A.208,404

B.208,405

C.209,404

D.209,405

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