A.Nonewinterfaceiscreated.
B.Onlythestinterfaceiscreated.
C.fxp1，fab0，andfab1arecreated.
D.st，fxp1，reth，fab0，andfab1arecreated.
参考答案：C
ANonewinterfaceiscreatedBOnlythestinterfaceiscreatedCfx
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