单项选择题

Human beings have ______themselves to very diverse environments with the help of fire, agriculture and machines.

A．adapted
B．addicted
C．adopted
D．adhered
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单项选择题
Since 1945, the rivalry in military strength between the world's great powers has produced a balanced peace.
A．contemporarily
B．predictably
C．temporarily
D．previously
单项选择题
I think most people would agree that to man love is ______.nutrition is to plants and animals.
A．as
B．that
C．what
D．like
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