单选题Which of the following is needed to recover a system using ERD?（）AA bootable flash driveBThe original installation CD/DVDCAn ERD partition on the hard driveDAn ERD for that system
单选题
Which of the following is needed to recover a system using ERD?（）
A
A bootable flash drive
B
The original installation CD/DVD
C
An ERD partition on the hard drive
D
An ERD for that system
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