【多选题】考虑如下类:public class Sub extends Base {public Sub(int k) { }public Sub(int m,int n) { super(m,n);…}}假设Base类与Sub类在同一包中,则在Base类中必须存在的构造方法是( )。
D.
Base(int i,int j,int k) { }
【单选题】一产后4天的产妇,有下列主述,何项不是正常的产褥现象
【单选题】The relationship between K a of a weak acid and K b of its conjugate base is ( ).
【简答题】有以下程序: include<iostream> using namespace std; class Base { public: Base() { K=0; } int x; }; class Derivedl:virtual public Base { public: Derivedl() { x=10; } }; class Derived2:virtua1 public Base
【多选题】考虑如下类: public class Sub extends Base { public Sub(int k) { } public Sub(int m,int n) { super(m,n); ... } } 假设 Base类与Sub类在同一包中,则在Base类中必须存在的构造方法是 ( )。
D.
Base(int i,int j,int k) { }
【多选题】有以下代码成立,则Base类需要实现的构造方法有: 。 public class check extends Base{ pulbic check(){} public check( int j){super(j); } public check(int j,int k){ super(j,k); } }
D.
Base( int i, int j, int k)
【单选题】如下类说明: class Base{ int k; public: Base(int n){ k=n;} }; class Derived:public Base{ int i; public: Derived(int a,int b); }; Derived 类的构造函数在类外实现,正确的是( )
A.
Derived::Derived(int a,int b):k(a),i(b){}
B.
Derived::Derived(int a,int b):k(a),Derived(b){}
C.
Derived::Derived(int a,int b):Base(a),i(b){}
D.
Derived::Derived(int a,int b):Base(a),Derived(b){}
【单选题】配子发生过程中,同源染色体彼此分离发生在
【判断题】K b is the base ionization constant.
【多选题】考虑如下类: public class Sub extends Base { public Sub(int k) { } public Sub(int m,int n) { super(m,n); ... } } 假设Base类与Sub类在同一包中,则在Base类中必须存在的构造方法是( )。
A.
Base(int i,int j,int k) { }