删除teacher表的mark索引。 ____(1)__________ mark on teacher;
drop index
举一反三
内容
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中国大学MOOC: It is wise Mark his teacher’s advice.
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The Chinese teacher asked the girl students to make a mark on every two line.
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How many years later did the author become Mark’s Math teacher again?
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删除teacher表。
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The mark by the teacher ________ that you need to put more effort into the paper. A: denotes B: describes C: forms D: focus