单项选择题
A.4 B.8 C.12 D.16
A.8 B.10 C.12 D.16
A.句点 B.冒号 C.分号 D.逗号
A.struct BOOK x= &book; B.struct BOOK *x=&book; C.struct BOOK x=calloc(BOOK); D.struct BOOK *x=BOOK;
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