单项选择题
A user wants to install an external hard drive using the fastest connection available. Which of the following should the technician recommend?（）
A.USB 1.1
B.eSATA
C.USB 2.0
D.IEEE 1394
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A. Internal wireless adapter
B. CPU
C. PCMCIA card
D. RAM -
单项选择题
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A. Heatsink
B. Fan
C. Liquid cooling
D. Compressed air -
单项选择题
Which of the following characteristics is true of a PCIe x8 card?（）
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B. It uses eight memory addresses for storage of data.
C. It has eight lanes by which data is transmitted.
D. It has eight times the bandwidth of a standard PCI card.
