单选题When making a serial connection between two Windows 2000 machines， which type of cable is needed for proper communications？（）ARG-59 coaxial cableBRS-232 Null Modem cableCtelephone cableDUTP CAT5 patch cable
单选题
When making a serial connection between two Windows 2000 machines， which type of cable is needed for proper communications？（）
A
RG-59 coaxial cable
B
RS-232 Null Modem cable
C
telephone cable
D
UTP CAT5 patch cable
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解析：
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