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【单选题】
以下属性中哪个是EditText控件中的“没有输入信息时候,显示在控件上的提示信息”属性?A.
android:singleLine
B.
android:hint
C.
android:password
D.
android:ems
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【简答题】编写一个学生和教师数据输入和显示程序,学生数据有编号、姓名、班级和成绩,教师数据有编号、姓名、职称和部门。要求将编号、姓名输入和显示设计成一个类person,并作为学生数据操作类student和教师类数据操作类teacher的基类。
【简答题】Complete the sentences with the words or expressions given, changing the form where necessary. 1. Recently the company has been trying to increase its _______ by diversifying into other fields. 2. The...
【简答题】编写一个学生和教师数据输入和显示程序,学生数据有学号、班号和成绩,教师数据有姓名、职称和部门。要求设计一个抽象类 person (将信息的输入和显示设计成必须重写),并作为学生类 student 和教师类 teacher 的基类。
【单选题】By diversifying and selecting different assets for a portfolio, we can
A.
increase the variability of the portfolio.
B.
increase the possibility of making direct foreign investments.
C.
reduce the variability of the portfolio.
D.
reduce the systematic risk arising from the investments we make.
【简答题】Siemens is a 150-year-old German company, but it's not the company it was even a few years ago. Until recently, Siemens focused on producing electrical products. Today the firm has diversified into so...
【简答题】Our strategy for • Bentix is to position • brand as a major player in • medium cost health and personal care arena,by not only expanding its antiseptics offering,but also diversifying into • other hea...
【简答题】派生类的定义及构造函数问题 编写一个学生和教师数据输入和显示程序,学生数据有编号、姓名、班号和成绩,教师数据有编号、姓名、职称和部门。要求将编号、姓名输入和显示设计成一个类 person ,并作为学生数据操作类 student 和教师数据操作类 teacher 的基类。
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