A．fulfill delicate tasks like perforrrtm'g brain surgery
B．interact with human beings verbally，
C．have a little common sense
D．respond independently to a changing world

A．make a few decisions for themselves
B．deal with some errors with human．intervention
C．improve factory environments
D．cultivate human creativity

A．expected to copy human brain in internal structure
B．able to perceive abnormalities immediately
C．far less able than human brain in focusing on relevant information
D．best used in a controlled environment