The future for Britain's food production at that time looked like that
A.the fall in world food prices would benefit British food producers
B.an expansion of food production was at hand
C.British food producers would receive more government financial support
D.it looks depressing despite government guarantees
第1题
● (44) 设计模式允许一个对象在其状态改变时,通知依赖它的所有对象。该设计模式的类图如下图,其中, (45)在其状态发生改变时,向它的各个观察者发出通知。
(44)A.命令(Command) B.责任链(Chain of Responsibility) C.观察者(Observer) D.迭代器(Iterator) (45)A.Subject B.ConcreteSubject C.Observer D.ConcreteObserver
第2题
● (40) 设计模式允许一个对象在其状态改变时,通知依赖它的所有对象。该设计模式的类图如下图,其中, (41)在其状态发生改变时,向它的各个观察者发出通知。
(40)
A.命令(Command)
B.责任链(Chain of Responsibility)
C.观察者(Observer)
D.迭代器(Iterator)
(41)
A.Subject
B.ConcreteSubject
C. Observer
D.ConcreteObserver
第3题
A.Subject
B. ConcreteSubject
C. Observer
D. ConcreteObserver
第5题
A.单件(Singleton)
B.桥接(Bridge)
C.组合(Composite)
D.状态(State)
第7题
(43)
A. 单件(Singleton)
B. 桥接(Bridge)
C. 组合(Composite)
D. 状态(State)
(44)
A. Context
B. concreteStateA
C. Handle
D. State
第8题
(43)
A. 单件(Singleton)
B. 桥接(Bridge)
C. 组合(Composite)
D. 状态(State)
(44)
A. Context
B. concreteStateA
C. Handle
D. State
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