多项选择题

Which of the following are impact printers?（）

A. Line printer
B. Dot matrix printer
C. Thermal transfer printer
D. Inkjet printer
E. Xerographic printer

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单项选择题

Which of the following is the MOST likely default configuration for a serial port?（）

A. 8 Data bits, Odd Parity, 1 stop bit
B. 8 Data bits, Even Parity, 2 stop bits
C. 8 Data bits, No Parity, 1.5 Stop bits
D. 8 Data bits, No Parity, 1 Stop bit

单项选择题

Which of the following BEST describes the function of hyperthreading support within a CPU?（）

A. Allows the core to create a separate space to process threads
B. Allows the processor to handle multiple threads per core
C. Allows the core to shift to a higher clock speed based on thread count
D. Allows the processor to reject certain threads to increase performance

多项选择题

Which of the following are supported bus widths for a PCIe bus slot?（）

A. 1x
B. 3x
C. 6x
D. 16x
E. 24x