问题描述：
[单选]
在mysql中，与语句SELECT * FROM book b WHERE b、book_num NOT BETWEEN 200 AND 300;等价的有（）。
A．SELECT * FROM book b WHERE b、book_num< 200 OR b、book_num >= 300
B．SELECT * FROM book b WHERE b、book_num<= 200 OR b、book_num >300
C．SELECT * FROM book b WHERE b、book_num<= 200 OR b、book_num >= 300
D．SELECT * FROM book b WHERE b、book_num< 200 OR b、book_num >300
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答案解析：无
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