单项选择题
A.a,97B.a97C.97,aD.97a
A.unsignedintdoublecharB.doublecharunsignedintC.charunsignedintdoubleD.charaunsignedintdouble
A.3B.2C.1D.7
A.printf("%c\n",’a’);B.printf("%d\n",’a’);C.printf("%s\n",’a’);D.printf("%o\n",’a’);
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