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【多选题】
若水泥强度等级相等,道路硅酸盐水泥与普通硅酸盐水泥相相比其优点是( )A.
抗弯拉强度高
B.
收缩变形大
C.
耐磨性好
D.
抗冲击性能好
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【简答题】How do you rectify the mistake in marine VHF communication?
【单选题】假设有如下接口: public interface swim { void swim(); void breathe(); } public interface walk { void walk(); void breathe(); } 下面那些类的实现是正确的
A.
class Frog: swim,walk { void swim() { Console.WriteLine("I can swim"); } void walk() { Console.WriteLine("I can walk"); } void swim.breathe() { Console.WriteLine("I can breathe while swiming"); } void walk.breathe() { Console.WriteLine("I can breathe while walking"); } }
B.
class Fish : swim { public void swim() { Console.WriteLine("I can swim"); } public void swim.breathe() { Console.WriteLine("I can breathe while swiming"); } }
C.
class Fish : swim { public void swim() { Console.WriteLine("I can swim"); } public void breathe() { Console.WriteLine("I can breathe while swiming"); } }
D.
class Frog: swim,walk { public void swim() { Console.WriteLine("I can swim"); } public void walk() { Console.WriteLine("I can walk"); } void swim.breathe() { Console.WriteLine("I can breathe while swiming"); } void breathe() { Console.WriteLine("I can breathe while walking"); } }
【简答题】intece A{ int x = 0 } class B{ int x =1 } class C extends B implements A { public void pX(){ System.out.println(x) } public static void main(String[] args) { new C().pX() } }
【单选题】以日柱天干为出发点,周围四柱干支中, 有我生但与我阴阳属性不同的关系,称为:
A.
正印
B.
偏印
C.
正官
D.
七杀
E.
伤官
F.
食神
G.
劫财
H.
比肩
【简答题】判断下列程序是否存在问题? intece Playable{ void play(); } intece Bounceable { void Play(); } intece Rollable extends Playable，Bounceable{ Ball ball=new Ball("PingPang"); } class Ball implements Rollable{...
【单选题】public interface OilInterface { void printOil(); }
A.
有语法错误
B.
void printOil();默认是私有的
C.
void printOil();默认是公有的和抽象的
D.
void printOil();默认是静态的
【简答题】完形填空。 Do you like to go camping (野营)? Do you know how to start a fire? If you don't know how to start a fire, you 1 your food, and can't sit by the side of a fire, and can't keep yourselves 2 . Long, ...
【简答题】intece Playable { void play() } intece Bounceable { void play() } intece Rollable extends Playable, Bounceable { Ball ball = new Ball('PingPang') } class Ball implements Rollable { private St...
【单选题】要控制两个表中数据的完整性和一致性可以设置“参照完整性”，要求这两个表( )。
A.
是同一数据库存中的两个表
B.
不同数据库存中的两张表
C.
两个自由表
D.
一个是数据库存表，另一个是自由表
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