单项选择题

计算机存储子系统采用分层体系结构的主要目的是（）。
A、便于系统升级
B、便于读写数据
C、便于减小机箱体积
D、便于解决存储容量、速度和价格之间的矛盾
E、便于降低功耗

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单项选择题

RFID标准包括技术标准，数据内容与编码标准，性能与一致性标准，应用标准等。

A．对
B．错

单项选择题

In “Dimensions”, why does Lloyd decide to move to strange town after marriage?‌

A．He wants to start his life anew
B．He wants to sever the ties that Doree has with her mother’s friend to get better control of her
C．He finds better job opportunity in the other town
D．He is thinking of starting a family