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【单项选择题】

A user reports that a newly installed external CD-RW is not working. Jill, a technician, is called and notes the user has the CD-RW drive, a flash disk, a rarely used external hard drive and a wireless network adapter plugged into an external USB hub.<br /> Which of the following is the MOST likely reason for the problem?()<p> A user reports that a newly installed external CD-RW is not working. Jill, a technician, is called and notes the user has the CD-RW drive, a flash disk, a rarely used external hard drive and a wireless network adapter plugged into an external USB hub.<br /> Which of the following is the MOST likely reason for the problem?()</p>

A、A. The USB hub needs more USB ports.

B、B. The USB hub is a version 1.1.

C、C. The USB hub was not externally powered.

D、D. The USB hub is a version 2.0.

更多“A user reports that a newly installed external CD-RW is not working. Jill, a technician, is called and notes the user has the CD-RW drive, a flash disk, a rarely used external hard drive and a wireless network adapter plugged into an external USB hub.<br /> Which of the following is the MOST likely reason for the problem?()<p> A user reports that a newly installed external CD-RW is not working. Jill, a technician, is called and notes the user has the CD-RW drive, a flash disk, a rarely used external hard drive and a wireless network adapter plugged into an external USB hub.<br /> Which of the following is the MOST likely reason for the problem?()</p>”相关的问题
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