单项选择题

The Maryland Science Center stays open ______.

A．very day from 10 a.m. to8 p.m.
B．almost all the weekdays and weekends
C．on Thanksgiving Day and Christmas Day
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单项选择题
Which is TRUE about the Maryland Science
A．Visitors can play and learn at the same time.
B．It helps visitors travel to other countries.
C．It can be visited 24 hours a day.
单项选择题
Take pan of the Science Center home with you means that______.
A．visitors can buy something there and take them home
B．the Science Center may be sold to visitors
C．the visitors can make the Science Center their home
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