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多项选择题


and the command line:  
java -Dprop.custom=gobstopper Commander  
Which two, placed on line 13, will produce the output gobstopper?()

A.System.load("prop.custom");
B.System.getenv("prop.custom");
C.System.property("prop.custom);
D.System.getProperty("prop.custom");
E.System.getProperties().getProperty("prop.custom");