问题
多项选择题
ISDN接入Internet时所连接的接口主要有()。
A.RS-232接口
B.S/T接口
C.U接口
D.Lpt1接口
答案
参考答案:A, B, C
ISDN接入Internet时所连接的接口主要有()。
A.RS-232接口
B.S/T接口
C.U接口
D.Lpt1接口
参考答案:A, B, C
完形填空。 | ||||
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