单项选择题

To know what is good and ______ are two different things.

A．doing what is fight
B．to do what is fight
C．did what was fight
D．to do what was fight
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单项选择题
With the development of artificial intelligence, robots will do some mental work in office ______ some manual work on the production line.
A．in addition
B．except
C．as well as
D．as well
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