单项选择题

A．A new record.
B．An old record.
C．A popular record.
D．A record of classical music.
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单项选择题
A．By collections made at City Hall.B．By donations from the participants.C．By the allocation of funds from local hospitals.D．By contributions based on the miles participants covered.
A．By collections made at City Hall.
B．By donations from the participants.
C．By the allocation of funds from local hospitals.
D．By contributions based on the miles participants covered.
单项选择题
A．Light speed is millions of times faster than sound speed.B．Light speed is a million times slower than sound speed.C．Light speed is about millions of times faster than sound speed.D．Light speed is about a million times faster than sound speed.
A．Light speed is millions of times faster than sound speed.
B．Light speed is a million times slower than sound speed.
C．Light speed is about millions of times faster than sound speed.
D．Light speed is about a million times faster than sound speed.
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