1)In what way can we make a machine

1)In what way can we make a machine intelligent?[ ]A．By making it work in such environments as deserts, oceans or spaceB．By working hard for 10 or 20 yearsC．By either programming it or changing its structureD．By reproducing it(2)The underlined word“silicon”in the passage refers to ________．[ ]A．human beingsB．a chemical elementC．human brainsD．intelligent robots(3)A robot can be used to expand our frontiers when ________．[ ]A．its intelligence and cost are beyond questionB．it is able to bear the rough environmentC．it is made as complex as the human brainD．its architecture is different from that of the present ones(4)It can be inferred from the passage that ________．[ ]A．after the installation of a great number of cells and connections, robots will be capable of self-reproductionB．with the rapid development of technology, people have come to realize the possibility of making a machine with human-like abilityC．once we make a machine as complex as the human brain, it will possess intelligence．D．robots will have control of the vast, man-made world in space