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Given two files， GrizzlyBear.java and Salmon.java： If both classes are in the correct directories for their packages， and the Mammal class correctly defines the findSalmon（） method， which change allows this code to compile？（）

A、add import animals. mammals.*； at line 2 in Salmon.java
B、add import animals.fish.*； at line 2 in GrizzlyBearjava
C、add import animals.fish.Salmon.*； at line 2 in GrizzlyBear.java
D、add import animals. mammals.GrizzlyBear*； at line 2 in Salmon.java

正确答案:B

答案解析:有

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