单项选择题

A．She is tired of her present job.
B．Her phone number has changed.
C．She doesn’t have a fax machine.
D．She may quit her present job soon.
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单项选择题
Which of the following is true about the present swine flu viruses
A．The viruses can infect different species.
B．The genes of the viruses come from pigs.
C．The viruses mix genes from different species.
D．The genes of the viruses were made artificially.
单项选择题
What does the phrase sleeping on it in the third paragraph most probably mean
A．Paying no attention to a hard work.
B．Putting off what can’t be done right now.
C．Sleeping during the break time of a certain task.
D．Being satisfied with one’s success and taking no more pains.
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