单项选择题

A．California dental schools.
B．A little-known fact about George Washington.
C．Uses of animals in research.
D．George Washington’s sleep habits.
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单项选择题
A．Traveling by bus or car.B．Living in an expensive way.C．Enjoying city life.D．Finding places to live in.
A．Traveling by bus or car.
B．Living in an expensive way.
C．Enjoying city life.
D．Finding places to live in.
单项选择题
A．Because they do not want to pay for the houses.B．Because they have financial troubles.C．Because they like traveling across the country.D．Because they like drinking out.
A．Because they do not want to pay for the houses.
B．Because they have financial troubles.
C．Because they like traveling across the country.
D．Because they like drinking out.
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