单项选择题


A．450 million.
B．400 million.
C．550 million.
D．470 million.
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单项选择题
According to the information we get in Come What May: Handling the Garden Variety Computer Crisis , which of the following statements is NOT TRUE
A．Systems crash can also hobble your PC.
B．Kids "rearranging" data may destroy your information.
C．Adults inadvertently deleting files will lead to an information destruction.
D．Only physical disaster can damage your computer.
单项选择题
A．They were responding to an oral interview.B．They were making outlines of their essays.C．They were answering several history questions.D．They were evaluating each other’s answer.
A．They were responding to an oral interview.
B．They were making outlines of their essays.
C．They were answering several history questions.
D．They were evaluating each other’s answer.
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