单项选择题

What is the first paragraph mainly about

A．Recent predictions of computer related jobs.
B．The wide of computers in schools.
C．The urgency of computers education.
D．Public interest in computers.

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单项选择题

The leaflet is most probably provided by TSA to those who ______.

A．refused to check in their baggage.
B．had their baggage selected for inspection.
C．kept some damaged items in their baggage.
D．left their baggage unlocked.

单项选择题

What is the meaning of liable as it is used in the text

A．Responsible by law.
B．Permitted by law.
C．Suitable by law.
D．Prepared by law.