单项选择题

远程登录指()

A.Usenet
B.FTP
C.WWW
D.telnet
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单项选择题
在VisualBasic中，下列函数的值只为1，0，-1的是()。
A.INT(X)
B.ABS(X)
C.SQR(X)
D.SQN(X)
单项选择题
Excuse me, could you please tell me how to get to the railway station?___________A. No, I couldn't .B. Sorry, I don't know. I'm new here.C. I couldn't tell you.D. You can't ask me.
A.
B.
B.
C.
C.
D.
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