单项选择题

A．Using computers is a waste of resource.
B．Many people don’ t turn off the computers after using them.
C．Computers are run by electricity.
D．A computer is not a must for working.
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填空题
Liao gave up her opportunity of doing PHD in America to continue her TV documentary named ______.
单项选择题
A．Talk to some politicians.B．Sign her name in the book.C．Sell some of bet books.D．Do some research.
A．Talk to some politicians.
B．Sign her name in the book.
C．Sell some of bet books.
D．Do some research.
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