A．Learn from her since she took the class.
B．Concentrate on the section on prostaglandin.
C．Study the exam papers.
D．Work harder.

A．Learn from her since she took the class.B．Concentrate on the section on prostaglandin.C．Study the exam papers.D．Work harder.

A.Learn
B.
B．Concentrate
C.
C．Study
D.
D．Work
E.

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（37）下列 SQL 语言的定义语句组中，哪一（些）组包含了不正确的定义语句？ I．CREATE TABLE? CREATE VIEW? CREATEINDEX? II．DROP TABLE? DROP VIEW? DROP INDEX? III. ALTER TABLE? ALTER VIEW? ALTER INDEX? A）只有 I B）I 和 II C）只有 III D）II 和 III 点击查看答案