单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．One hour.
B．Two hours.
C．Three hours.
D．Four hours.
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单项选择题
A．A couple of days.B．Four days.C．Six months.D．Two weeks.
A．A couple of days.
B．Four days.
C．Six months.
D．Two weeks.
单项选择题
A．Just like an advanced typewriter.B．Equipped with a memory.C．Used as a filing cabinet.D．Easier to check and correct mistakes.
A．Just like an advanced typewriter.
B．Equipped with a memory.
C．Used as a filing cabinet.
D．Easier to check and correct mistakes.
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