钻井大钩提升时有打滑的现象可能是（）。 A.刹车片或刹车榖磨损严重 B.刹带块未离开

Did you know that there are actually people who have paid for a flight to the moon? In the future, there will be a lot more opportunities to travel to faraway places than now… perhaps even as far as the moon. As people adventure further and further away and as planes, trains, cars, and rocket ships become faster, is it safer to have these vehicles controlled by humans or by computers?

While many flights by plane are controlled automatically by machines, most people today wouldn’t let their car drive itself. That’s because currently the autopilot function on your car can only keep it on the same course you are travelling on. It won’t turn the car right or left. It won’t stop if an animal jumps in the way. However, cars today can sense when something is too close and warn the driver with flashing lights and alarms. Many cars also have GPS（global positioning systems） that tell drivers which road to take and when to turn. These systems, unlike human drivers, never get lost. In the future, it is easy to believe that your car will be better able to drive itself with the aid of computers that can determine the position of your car and the speed it should travel at.

In addition to computers being ‘smarter’ than people regarding the best way to go or knowing how close another vehicle is, computers don’t get sick, tired, or angry. This means they won’t make the same mistakes that people make when they are not having a good day. While responding with emotion is a good thing when choosing the best way to deal with a friend’s personal problem, it may not be such a good thing when deciding what to do at the wheel of a fast-moving vehicle.

So what are the disadvantages of autopilot systems? Maybe one disadvantage is that a small computer problem could cause a serious accident. It could also be argued that in unexpected situations, computers might not be able to respond appropriately; some decisions require human emotions. Another problem might be that if everything were controlled by computers or robots, people wouldn’t have any jobs.

小题1:What is the best title for the passage?

A．The Development of Autopilot

B．Technology of Future Travel

C．A New Driving System

D．Computerized Cars小题2:Which of the following is the disadvantage of an autopilot system?

A． It won’t make the same mistakes as people do.

B． It can point out the best route for the driver.

C． It might not respond properly to unexpected situations.

D．It does not have human emotions to influence its function.小题3:If some falling rocks roll down toward your car, the autopilot on your car will_______.

A．inform you of the danger

B．turn the car right or left

C．do nothing about it

D．stop the car小题4:What’s the author’s attitude towards the autopilot?

A．Approving.

B．Objective.

C．Negative.

D．Doubtful.

下列不具有清热解毒作用的是

A．五味消毒饮

B．银翘散

C．仙方活命饮

D．大黄牡丹汤

E．清气化痰丸

在恒温恒容条件下，能使A(g)+B(g) C(g)+D(g)正反应速率增大的措施是 (   )

A．增大C或D的浓度

B．减小B或A的浓度

C．减小C或D的浓度

D．充入稀有气体

（）就是利用企业内部网络进行电子交易。

A.基于Extranet（企业外部网）网络的电子商务

B.基于Internet网络的电子商务

C.基于Intranet（企业内部网）网络的电子商务

D.基于局域网的电子商务

Charles liked music very much when he was at school, but (41) he went to the university he decided to study medicine (42) music. When he passed his examinations and became a doctor, he had to work in a hospital for (43) . There he discovered that a lot of patients were happier if (44) music was played for them. When Charles got an office and began to work (45) himself, he decided to (46) his patients happy by having a tape recorder in his waiting room play beautiful music for them.
But (47) the tape recorder had been put in(安装), Charles’ nurse heard a woman complain in the crowded (48) , "Here we’re (49) waiting to see the doctor, and he’s just playing (50) piano in his office instead of doing his work. \

[A]sometimes[B]sometime [C]some time