It can be inferred from the text that the retail price o{ petrol will go up dramatically if ______.

A．heavy industry becomes more energy-intensive
B．income loss mainly results from fluctuating crude oil prices
C．manufacturing industry has been seriously squeezed
D．oil price changes have no significant impact on GDP

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