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Controlling Robots with the Mi"的相关试题:
[单项选择]第三篇
Controlling Robots with the Mind
Belle， our tiny monkey， was seated in her special chair inside a chamber at our Duke University lab. Her right hand grasped a joystick （操纵杆） as she watched a horizontal series of lights on a display panel. She knew that if a light suddenly shone and she moved the joystick left or right to correspond to its position， she would be sent a drop of fruit juice into her mouth.
Belle wore a cap glued to her head. Under it were four plastic connectors， which fed arrays of microwires-each wire finer than the finest sewing thread- into different regions of Belle’s motor cortex （脑皮层）， tile brain tissue that plans movements and sends instructions. Each of the 100 microwires lay beside a single motor neuron （神经元）。 When a neuron produced an electrical discharge， the adjacent microwire would capture the current and send it up through a small wiring bundle that ran from Belle’s cap to a box of electronics on a table next to the booth. The box， in turn， was
A. grasped the joystick.
B. moved the joystick to the side of the light.
C. sat quietly in a special chair.
D. watched lights on a display panel.
[单项选择]第三篇 Milk That Paid a Medieal Bill
One day，a poor boy who was selling goods from door to door to pay his way through school found he had only one thin dime(10分钱)left，and he was hungry．
He decided he would ask for a meal at the next house．However,he lost his nerve when a lovely young woman opened the door．Instead of a meal he asked for a drink of water．She thought he looked hungry so she brought him a large glass of milk．He drank it slowly，and then asked．"How much do I owe you …’You don’t owe me anything"she replied．"Mother has taught us never to accept pay for a kindness．"He said．"Then I thank you from my heart．"
As Howard Kelly left that house，he not only felt stronger physically，but his faith in God And man was strong also He had been ready to give up and quit．
Years later that young woman became critically i11．The local doctors were baffled(感到困惑)．They finally sent her to the big city，where they called in specialists to study her rare disease．Dr Howard Ke
A. they had both changed beyond recognition．
B. neither remembered their previous meeting
C. the boy had become a medical specialist
D. the woman had come to stay in the big city．
[单项选择]第三篇
Water
The second most important constituent (构成成份) of the biosphere (生物圈) is liquid water. This can only exist in a very narrow range of temperatures, since water freezes at 0℃ and boils at 100℃. Life as we know it would only be possible on the surface of a planet which had temperatures somewhere within this narrow range.
The earth’s supply of water probably remains fairly constant in quantity. The total quantity of water is not known very accurately, but it is about enough to cover the surface of the globe to a depth of about two and three-quarter kilometers. Most of it is in the form of the salt water of the oceans about 97 percent. The rest is fresh, but three quarters of this is in the form of ice at the Poles and on mountains, and cannot be used by living systems until melted. Of the remaining fractional which is somewhat less than one per cent of the whole, there is 10—20 times as much stored underground water as t
A. in the center of the earth.
B. on the surface of our planet.
C. in a very narrow range of temperatures.
D. in the coastal areas of the earth.
[单项选择]
第三篇
Wayne Beno
"Wayne Beno was a true outdoorsman. Fishing, boating, hunting, walking through the woods with his three dogs, Wayne loved and did it all. Then life changed dramatically. Wayne was diagnosed with Parkinson’s disease (帕金森氏病).
"For the next thirteen years I took 28 pills a day, had horrible side effects, and even with all those pills I still had lots of shaking and tremors(颤抖). I only went out during peak times, when I was looking and feeling my best. But that wasn’t often and I really couldn’t do much of anything. I felt like the fife I loved was over," said Wayne.
Then Wayne’s doctor in Green Bay suggested he consider a breakthrough surgical option being offered at Froedtert & the Medical College of Wisconsin called Deep Brain Stimulation (刺激) (DBS). DBS is a surgical option used to treat disabling movement disorders related to Parkinson’s disease, e
A. social activities
B. outdoor activities
C. productive activities
D. quiet activities
