串联电路中电压电流有哪些特点？

[单选题]Passage1    Lonely people, it seems, are at greater riskthan the gregarious of developing illnesses associated with chronicinflammation, such as heart disease and certain cancers. A paper published lastyear in the Public Library of Science, Medicine, shows the effect on mortalityof loneliness   is comparable with thatof smoking and drinking after examining the results of 148 previous studies andcontrolled for factors such as age and pre-existing illness.Steven Cole of the University ofCalifornia, Los Angeles, thinks he may know why this is so. He told theAmerican Association for the Advancement of Science meeting in Washington,D.C., about his work studying the expression of genes in lonely people. Dr.Cole harvested samples of white blood cells from both lonely and gregariouspeople. He then analysed the activity of their genes, as measured by theproduction of a substance called messenger RNA. This molecule carries    instructions from the genes telling a cellwhich proteins to make. The level of messenger RNA from most genes was the samein both types of people. There were several dozen genes, however, that wereless active m the lonely, and several dozen others that were more active.Moreover, both the     less active andthe more active gene types came from a small number of functional groups.    Broadly speaking, the genes less active in thelonely were those involved in staving off viral infections. Those that weremore active were involved in protecting against bacteria. Dr. Cole suspectsthis could help explain not only why the lonely are iller, but how, inevolutionary terms, this odd state of affairs has come about.     The crucial bit ofthe puzzle is that viruses have to be caught from another infected individual andthey are usually species-specific. Bacteria, in contrast, often just lurk inthe environment, and  may thrive on manyhosts. The gregarious are therefore at greater risk than the lonely ofcatching  viruses, and Dr. Cole thussuggests that past evolution has created a mechanism which causes white cellsto respond appropriately. Conversely, the lonely are better off ramping uptheir protection  against bacterialinfection, which is a bigger relative risk to them.      What Dr. Cole seemsto have revealed, then, is a mechanism by which social environment reachesinside a person's body and tweaks its genome so that it responds appropriately.It is not that the lonely and the gregarious are genetically different fromeach other. Rather, their genes are regulated differently, according to howsociable an individual is. Dr. Cole thinks this regulation is part of a widermechanism that tunes individuals to the circumstances they find themselves in.What can we know about viruses and bacteria from the fourth paragraph?

[单选题]甲型强心苷UV最大吸收为（）

[判断题]在其他因素不变的情况下，大组织所支付的薪酬水平往往要比中小组织支付的薪酬水平要高。

[单选题]培训成果转化的最终途径是（）

[单选题]个人商业性贷款在协定还款日，系统自动进行还本付息操作，如账户余额不足，转作逾期，满（）天后，系统自动将利息转至表外。

[问答题]普桑的艺术特点？

[填空题]各种神经症性症状可见于感染、中毒、内脏、内分泌或代谢和脑器质性疾病，称（）。不能称（）。

[单选题]（）书中交代以下何人心胸比较狭窄？

[单选题]恒牙期骨性前牙反最常见的矢状颅面类型为（）

[单选题]下列哪部法律法规从法律层面规定了国际联网、互联网络、接入网络等信息技术术语（）

[判断题]在串联电路中，总电压等于各串联导体分电阻的端电压，即U=U1=U2。

[判断题]在串联电路中，总电压等于各串联导体分电阻的端电压，即U=Ul=以。

[判断题]串联电路中各串联电阻上的电压相等

[判断题]必须把电压表和被测电路串联。

[问答题]串联电路中总电压与支路电压有什么关系？某两段电路与其中一段的电压有什么关系？

[判断题]串联电路中，电路两端的总电压等于各电阻两端的分压之和。

[单选题]在串联电路中，某段电路电压降大，说明该段电路（）。

[问答题]混联电路与串联、并联电路的电压、电流关系有什么不同？

[判断题]串联电路中，电路两端的总电压等于各电阻两端的分压之和。

[填空题]电阻的串联电路可以用来限制电路中的（）和电压。