单项选择题

Internet, a ________ of millions of computers linked world wide, is the largest system serving e - mail messengers.

A．unity
B．connection
C．network
D．combination
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单项选择题
Before the tourists set off, they spent much time setting a limit ________ the expenses of the trip.
A．for
B．in
C．to
D．about
单项选择题
What authors do you like Shakespeare is ____________.

A．favorite for me
B．my favorite
C．for me tile favorite
D．the favorite of mine
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