题目内容

Disk caching uses a combination of hardware and software.

A. 对
B. 错

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RAID connects several inexpensive hard-disk drives to one another.

A. 对
B. 错

File compression is only available on hard-disk drives.

A. 对
B. 错

CD-ROMs are often used to archive data and to record music downloaded from the Internet.

A. 对
B. 错

DVDs have replaced CDs as the standard optical disc.

A. 对
B. 错