皮皮学，免费搜题
登录
搜题
【简答题】
什么是 标量属性和索引属性。 什么是 简单属性 在前面定义类的时候,可以定义类的属性,这里的标量属性和索引属性,与前面的属性有何不同? 每个属性一般都包含哪两个处理函数? 索引属性有两种: 默认索引属性和有名索引属性,使用中有何不同? 说明你对 标量属性和索引属性这两个程序在调试运行中出现的问题,以及是如何解决的。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Note 6: Pre-existingconditions may _____________.
【多选题】饮用葡萄酒可以帮助消化,促进内分泌.还有预防伤风感冒的作用.这是因为葡萄酒中含 有丰富的维生素,特别是()
A.
维生素A
B.
维生素B
C.
维生素C
D.
维生素D
【判断题】Chinese teachers hold the opinion that skills should be acquired as early as possible, while American educators think that creativity should be acquired early
A.
正确
B.
错误
【单选题】In the early 1950's, historians who studied pre-industrial Europe (which we may define here as Europe in the period from roughly 1300 to 1800) began, for the first time in large numbers, to investigat...
A.
used surveys that were statistical in nature
B.
failed to distinguish between political and social elite
C.
limited their work to a small portion of the population
D.
relied heavily on birth, marriage, and death records
【简答题】A．They are likely to be annoyed if they are not. B．They may give the bride valuable presents. C．Their presence could provide future benefits. D．They may help with the expenses of the wedding.
【单选题】Educators think that television is making ____.
A.
more and more illiterates of children
B.
more and more children of illiterates
C.
more and more children to become illiterates
D.
more and more children will become illiterates
【单选题】Which of the following may possibly be the reason for why several EU countries are now pressing ahead with their own harmonisation deal?
A.
Vetoes from some countries blocked Rome III from being put into effect.
B.
Citizens in those countries require the government to do so.
C.
Rome Ⅲ was just too ambitious to encompass all the issues that may occur in Europe, thus lacking of feasibility in specific cases.
D.
Differences between civil law system and common law system force this.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
