主页
学科
搜索
账户
常见问题
当前学科:高压电工考试
题目:
判断题
PN结可看成一个电容、空间电荷区域相当于介质、P区和N区则为导体。()
A . 正确
B . 错误
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
国际法的编纂的意义在于:一是把现有的国际法原则、规则和规章制度订成法典,使分散的原则和规则法典化。二是按照法典形式把所有原则和规则进行法律上的整理,使之成为新法律,并促进其发展。()
面神经的第一支分支是()。
章秋柳
女,34岁,今晨突然恶心、呕吐,伴眩晕,视物旋转。查体:双眼球震颤,最可能的诊断为()。
通常防火墙设备将其所连接的区域划分为三块,分别是Trust、Untrust和DMZ,其中,内网中需要向外提供服务的服务器往往放在()。
下列哪项是左心整体舒张功能的超声测量指标()。
依据《建设项目环境影响评价文件分级审批规定》,下列类型建设项目的环境影响评价文件,应当由环境保护部负责审批的是()。
当测定生化需氧量BOD的水样中含游离氯或结合氯干扰时,向样品中加入______溶液,可使样品中自由氯和结合氯失效。 A.亚硫酸钠 B.硫代硫酸钠 C.碘化钾 D.盐酸羟胺
Dinner,for English people,is the richest meal of the day and is a very formal meal.Many people even wear special clothes for dinner,so if you are asked out to dinner you must find out whether you are expected to wear a dinner suit,for you would feel very upset if,when you get there,you were the only person in ordinary clothes.Dinner is generally served at about half past seven.All the members of the family sit down together and eat on their best behavior.The head of the family sits at one end of the table,his wife sits at the other end.If there is a guest,he generally sits in the place of honor,which is at the fight of the lady of the house.If there are several guests,the most important is asked to sit there.When the meal conversation is carried on,you should try to get in conversation with the person on your right or left,but you should not try to talk to someone who is a long way from you.
激冷水浴的作用?