单项选择题

A．Fire prevention.
B．House construction.
C．Toxic chemicals.
D．Insects Elimination.
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单项选择题
A．Scholarship.B．Language talent.C．Screening system.D．Scholastic ability.
A．Scholarship.
B．Language talent.
C．Screening system.
D．Scholastic ability.
单项选择题
A．There are over 1,000 miles of track in Britain.B．In Britain there are about 250,000 miles of track.C．There are over 13,000 miles of track in England.D．In England there are 133,000 miles of track.
A．There are over 1,000 miles of track in Britain.
B．In Britain there are about 250,000 miles of track.
C．There are over 13,000 miles of track in England.
D．In England there are 133,000 miles of track.
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