赞题库-背景图
单项选择题

A．By computerized traffic control and personal computers at home.
B．By computerized cash registers in the stores.
C．By computerized billing of credit card companies.
D．All of above.
<上一题 目录 下一题>
热门试题

单项选择题A．Because they can’t be predicted.B．Because they happen very often.C．Because they kill more people than other disasters do.D．Because they are more disastrous.

A．Because they can’t be predicted.
B．Because they happen very often.
C．Because they kill more people than other disasters do.
D．Because they are more disastrous.

单项选择题A．To allow students to take tests through computer.B．To store statistics about students.C．To help professors do research work.D．To aid in registration.

A．To allow students to take tests through computer.
B．To store statistics about students.
C．To help professors do research work.
D．To aid in registration.