单项选择题

A．At weekends.
B．On weekdays.
C．Late in the week.
D．On Thursday.
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Profs. John Kemeny and ______created the computer language BASIC, which helped hasten the personal-computer revolution.
单项选择题
A．It’s too expensive.B．It isn’t needed.C．It should be built.D．A college would be better.
A．It’s too expensive.
B．It isn’t needed.
C．It should be built.
D．A college would be better.
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