A technician replaced a floppy drive and now the front indicator light is consistently illuminated.Which of the following is the cause for this?（）
- A、It is a feature of new floppy drives.
- B、The data cable was put on backwards.
- C、A disk is being read by the floppy drive.
- D、The new floppy drive is defective.
正确答案:B
答案解析:有
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