26: 在___子查询中，内层查询只处理一次，得到一个结果集，再依次处理外层查询。
可供选择答案:
A: SELECT * FROM XS WHERE 姓名 LIKE ‘王%
B: SELECT * FROM XS WHERE 姓名 LIKE ‘王_’
C: SELECT * FROM XS WHERE 姓名 = ‘王%’
D: SELECT * FROM XS WHERE 姓名 = ‘王_’
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