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多项选择题 10. class Foo {  11. static void alpha() { /* more code here */ }  12. void beta() { /* more code here */ }  13. }  Which two are true?()

A、 Foo.beta() is a valid invocation of beta().

B、 Foo.alpha() is a valid invocation of alpha().

C、 Method beta() can directly call method alpha().

D、 Method alpha() can directly call method beta().

  • B,C
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