单项选择题

Acer Inc, Fujistu-Siemens, and Toshiba are ______.

A．P. C. makers
B．P. C. sellers
C．P. C. makers or sellers
D．famous computer companies
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单项选择题
Since the cost of notebook computers drops, ______.
A．there will be less import of them
B．there will be more buyers
C．the price of them will increase
D．the price of them will drop
单项选择题
According to the passage, the sales of laptops in China ______.
A．drop year-on-year
B．will drop this year
C．will increase this year
D．the passage doesn't say
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