听力原文：M: I think I may need glasses, but I'm not quite sure.
W: I'll be able to tell once you've looked at this vision chart.
Q: What is the woman's profession?
(14)
A．A student.
B．A teacher.
C．A doctor.
D．An optometrist.

下列条目中，（）是数据库管理员（DBA）的职责。Ⅰ．决定数据库中信息的内容和结构Ⅱ．决定数据库的存储结构和存取策略Ⅲ．监控数据库的使用和运行Ⅳ．改进数据库性能，必要时对数据库进行重组和重构Ⅴ．定义数据库的安全性要求和完整性约束

A.仅Ⅰ、Ⅲ和Ⅴ
B.仅Ⅰ、Ⅱ和Ⅲ
C.仅Ⅲ和Ⅳ
D.都是

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A．Less than one year.B．More than one year.C．Less than one term.D．More than one term.

A.Less
B.
B．More
C.
C．Less
D.
D．More
E.

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