单项选择题

A．He sold traffic-counting system to local governments.
B．He dropped out of his law course at Harvard University.
C．He founded his own company--Microsoft Software company.
D．He devised an operating system for IBM.
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单项选择题
A．It burned up in a fire.B．Someone soaked it in ink.C．Hot water damaged the entire copy.D．Someone mistakenly threw it into the trash.
A．It burned up in a fire.
B．Someone soaked it in ink.
C．Hot water damaged the entire copy.
D．Someone mistakenly threw it into the trash.
单项选择题
A．In April.B．In May.C．In July.D．Not decided yet.
A．In April.
B．In May.
C．In July.
D．Not decided yet.
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