单选题Which interface provides the ability to see changes in real-time as they occur ？ （）A ConcurrentMapB java.util.AbstractMapC ObservableMapD InvocableMap
单选题
Which interface provides the ability to see changes in real-time as they occur ？ （）
A
ConcurrentMap
B
java.util.AbstractMap
C
ObservableMap
D
InvocableMap
参考解析
解析：
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