单项选择题

About one million Americans are diagnosed，annually with skin cancer（）

A．every year
B．severely
C．actively
D．every month

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单项选择题

Enormous sums of money have been spent on space exploration．（）

A．Much
B．Large
C．Small
D．Fixed

单项选择题

While we don’t agree，we continue to be friends（）

A．Whoever
B．Where
C．Although
D．Whatever

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