Pour être à la BLC, il faut déposer de l’argent.（）

听力原文：M: I don't remember exactly what the lab hours are. But they posted on the door.

W: I just checked that schedule and it says that the lab opens at ten.

M: I need to go to the lab to finish my experiment-now.

W: But it's all locked up.

What can be inferred about the lab?

A．It's closed on Mondays.

B．The man doesn't like working there.

C．It's supposed to be open now.

D．The man locked it at 10:00.

有以下程序 #include＜string．h＞ main(int arge，char *argv[]) { int i，len=0； for(i=1；i＜arge；i++)len+=strlen(argv[i])； printf(“%d\n”，len)； } 程序编译连接后生成的可执行文件是exl．exe，若运行时输入带参数的命令行是： exl abcd efg 10＜回车＞ 则运行的结果是

A．22

B．17

C．12

D．9

生物利用度(bioavalability)

A expense

B restriction

C allocation

D availability

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), the 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 currant 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 linked to two computers, one next door and the other half a country away.

After months of hard work, we were about to test the idea that we could reliably translate the raw electrical activity in a living being's brain - Belle's mere thoughts - into signals that could direct the actions of a robot. We had assembled a multijointed robot arm in this room, away from Belle's view, which she would control for the first time. As soon as Belle's brain sensed a lit spot on the panel, electronics in the box running two real-time mathematical models would rapidly analyze the tiny action potentials produced by her brain cells. Our lab computer would convert the electrical patterns into instructions that would direct the robot arm. Six hundred miles north, in Cambridge, Mass, a different computer would produce the same actions in another robot arm built by Mandayam A. Srinivasan. If we had done everything correctly, the two robot arms would behave as Belle's arm did, at exactly the same time.

Finally the moment came. We randomly switched on lights in front of Belle, and she immediately moved her joystick back and forth to correspond to them. Our robot arm moved similarly to Belle's real arm. So did Srinivasan's. Belle and the robots moved in synchrony (同步), like dancers choreographed (设计舞蹈动作) by the electrical impulses sparking in Belle's mind.

In the two years since that day, our labs and several others have advanced neuroscience, computer science and microelectronics to create ways for rats, monkeys and eventually humans to control mechanical and electronic machines purely by "thinking through," or imagining the motions. Our immediate goal is to help a person who has been unable to move by a neurological (神经的) disorder or spinal cord (脊髓) injury, but whose motor cortex is spared, to operate a wheelchair or a robotic limb.

Belle would be fed some fruit juice if she

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.

听力原文： W: Hi, Dan, [23]you know which lab you missed? You can have my notes.

M: Thanks. I appreciate that.

W: So how are you feeling?

M: Much better now that I began taking an antibiotic. Students Health gave me one, and it's really helpful. You know what amazes me? [24] The human races survive before antibiotics.

W: [24] I agree. When my father was a young boy in the 1940's, he got blood poisoning and would have died. But his doctor had heard of this new drug called penicillin.

M: Wow, he was really lucky. And we have lots of antibiotics that kill bacteria.

W: Well, penicillin kills bacteria, but not all antibiotics do. Some are just slowing the bacteria down until our normal immune defense can finish the job. Tetracycline(四环素) works in that way.

M: Wow, how do you know all these?

W: My mother used to look up all our medicines. There are lots of books around. It's interesting. What antibiotic are you taking?

M: I don't remember. It's on the bottle. [25] I think I'll take a new look at the label and drop by the library to see if they have reference books on medicines. See you in the lab tomorrow.

(1)

A．Her lab notes.

B．A medical reference book.

C．A homework assignment.

D．The name of her doctor.

ToenhancetheavailabilityofanapplicationrunningunderHACMP，adecisionwasmadetouseTheapplicationmonitoringfacility.Theapplicationconsistsofseveralcomponentsandcantakeseveralminutestoinitialize.Thecomponentsusesocketcommunicationandcanbeinitializedinanyorderaslongasitisaserialorder.Thecustomer’sconcernisthatiftheapplicationstopandstartscriptsareusedduringapplicationmonitoringrecovery，itmaytakeanextraordinarylengthoftimetoresetalloftheapplicationcomponents.

Whatcanbedonetoensurethebestrecovertime？（）