【简答题】下列程序的运行结果是 ( ) class Shape{ public Shape(){ System.out.print("S"); } } class Circle extends Shape{ public Circle(){ System.out.print("C"); } public Circle(double r){ this(); System.out.print(r); } } p...
【单选题】给定如下代码,要在第三个构造方法的空白处填上一行代码使之能够调用第二个构造方法,这行代码应该是() class Circ le{ Str ing name,radi us; int r; public Circle(String n){ name=n; } public Circle(String n, int a){ na me=n; r=a; } public Circle(String n,...
【简答题】fear artificial devices argue remind share basic nature recent project 1 . Mary is my best friend and I always my secrets( 秘密 ) with her. 2 . The lost traveler was filled with when he saw a...
【判断题】There are four/4 teams in BP debate.
【单选题】There are four major professional _______ and the teams of these are called ________.
A.
federations...... members
C.
leagues..... franchises
【简答题】材料1
也许会有人认为,既然商品的价值是由生产它所耗费的劳动量决定的,那么一个人越懒或越笨,他生产的商品就越有价值,因为完成这个商品所需要的劳动时间越多。然而,这样推论将是一个可悲的错误。
——参见《马克思恩格斯选集》第2卷
材料2
如果生产各种商品所必需的各种劳动量是固定不变的,这些商品的相对价值也会是固定不变的。但是,其实不然。生产一个商品所必需的劳动量,是随着所用劳动的生产力的变化而...
【判断题】爵士乐架子鼓拾音时,通常用两只全指向形或阔心形传声器,彼此间隔一定的距离,设置在鼓的上方来拾取整套鼓的声音。