单项选择题

A．650 million
B．750 million
C．a billion
D．10 billion
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单项选择题
The Pilgrims came to America in a ship named the______.
A．Half Moon
B．Speedwell
C．Mayflower
D．Santa Maria
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The Louisiana territory of America was purchased from______.
A．Spain
B．England
C．France
D．Russia
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