单项选择题

A．Its chemical elements must be studied.
B．Its temperature must be lowered.
C．Big spaceships must be built.
D．Its atmosphere must be changed.
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单项选择题
A．He provided Washington with a lot of money.B．He persuaded France to support Washington.C．He served as a general in Washington’s army.D．He represented Washington in negotiations with Britain.
A．He provided Washington with a lot of money.
B．He persuaded France to support Washington.
C．He served as a general in Washington’s army.
D．He represented Washington in negotiations with Britain.
单项选择题
A．Few of them can live long.B．Few of them get along well with each other.C．Most of them live a normal life.D．Most of them differ in their likes and dislikes.
A．Few of them can live long.
B．Few of them get along well with each other.
C．Most of them live a normal life.
D．Most of them differ in their likes and dislikes.
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