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下面程序运行的结果是struct Student { public int age; public string name; public Student(int age, string name) { this.age = age; this.name = name; } }class Program { static void Main(string[] args) { Student stu1 = new Student(18, "小方"); Student stu2 = new Student(24, "小刚"); stu2 = stu1; stu1.age = 30; stu1.name = "小燕"; Console.WriteLine("{1},{0}",stu2.age,stu2.name); } }

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下面程序运行的结果是:publicclassA{publicvirtualvoidFun1(inti){Console.WriteLine(i);}publicvoidFun2(Aa){a.Fun1(1);Fun1(5);}}publicclassB:A{publicoverridevoidFun1(inti){base.Fun1(i+1);}}class Program { static void Main(string[] args) { B b = new B(); A a = new A(); a.Fun2(b); b.Fun2(a); Console.ReadKey(); } }

下面程序段输出的结果是什么static void Main(string[] args){ string [ ] arr1 = new string []{"高等数学","C#语言程序设计","面向对象程序设计","英语"};foreach (string a in arr1)Console.WriteLine(a);}

调速阀是由( )阀和( )阀( )联组成的。( )阀的进出口的压力差是由( )阀保证而基本不变化一的,使其流量不受负载变化的影响。一般情况下,对于调速阀其( )压力差必须大于一定值(5×105Pa或10×105Pa),才能正常工作。

溢流阀的进口压力随流量变化而波动的性能称为( ),性能的好坏用( )或( )、( )评价。显然(ps—pk)、(ps—pB)小好, nk和nb大好

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