单项选择题

According to American federal government, residents of Hawaii have the longest life______: 77.2 years.

A．rank
B．scale
C．span
D．scope
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单项选择题
It's self-evident that no one would have time to know everything ______going on in the world.
A．there is
B．as is
C．it is
D．what is
单项选择题
His only wish, before he passed away, ______.poverty of the underdeveloped areas has been put into reality step by step now.
A．eliminating
B．eliminated
C．was to eliminate
D．to eliminate
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