单项选择题

International Discount Telecommunications uses_______

A．ring-back technique
B．discounting technique
C．third-country calling technique

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单项选择题

A．make
B．put
C．add
D．fill

单项选择题

What was the court ruling as to Microsoft’s business practice

A．Microsoft used computer systems to win competition
B．Microsoft was broken up earlier this month because of the rapid growing broadband market
C．Microsoft broke anti-trust law by using its monopoly in the market.

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