题目内容
（请给出正确答案）
A.sphere
B.cone
C.pyramid
D.cube
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更多“The object used to separate off or close sections of a road is usually in the shape of ______.”相关的问题
A、environmental scanning
B、quality management
C、benchmarking
D、continuous improvement
A growing group of AI researchers think they know where the field went wrong. The problem, the scientists say, is that AI has been trying to separate the highest, most abstract levels of thought, like language and mathematics, and to duplicate them with logical, step-by-step programs. A new movement in AI, on the other hand, takes a closer look at the more roundabout way in which nature came up with intelligence. Many of these researchers study evolution and natural adaptation instead of formal logic and conventional computer programs. Rather than digital computers and transistors, some want to work with brain cells and proteins. The results of these early efforts are as promising as they are peculiar, and the new nature-based AI movement is slowly but surely moving to the forefront of the field.
Imitating the brain's neural network is a huge step in the right direction, says computer scientist and biophysicist Michael Conrad, but it still misses an important aspect of natural intelligence. "People tend to treat the brain as if it were made up of color-coded transistors", he explains, "but it's not simply a clever network of switches. There are lots of important things going on inside the brain cells themselves. " Specifically, Conrad believes that many of the brain's capabilities stem from the pattern recognition proficiency of the individual molecules that make up each brain cell. The best way to build an artificially intelligent device, he claims, would be to build it around the same sort of molecular skills.
Right now, the option that conventional computers and software are fundamentally incapable of matching the processes that take place in the brain remains controversial. But if it proves true, then the efforts of Conrad and his fellow AI rebels could turn out to be the only game in town.
The author says that the powerful computers of today ______.
A．are capable of reliably recognizing the shape of an object
B．are close to exhibiting humanlike behavior
C．are not very different in their performance from those of the 50's
D．still cannot communicate with people in a human language
Section a Directions: in this section, you will hear two long conversations at the end of each comversation you will hear four questions. both the comversation and the questions will be spoken only once. afier you hear a question, you must choose the best answer from the four choices marked a, b cand d. then mark the corresponding letter on answer Sheet i with a single line through the centre. Questions1 to 4 are based on the conversation you have just heardA.they reward businesses that eliminate food wast
B.they prohibit the sale of foods that have gone stale
C.they facilitate the donation of unsold foods to the needy
D.they forbid businesses to produce more foods than needed
2、A.it imposed penalties on businesses that waste food
B.it passed a law aiming to stop overproduction
C.it voted gainst food import from outside europe
D.it prohibited the promotion of bulk food sales.
3、A.it has warmed its people against possible food shortage.
B.it has penalized businesses that keep overproducing foods
C.it has started a nationwide campaign against food waste.
D.it has banned supermarkets from dumping edible foods.
4、A.the confusion over food expiration labels.
B.the surplus resulting from overproduction
C.americans' habit of buying food in bulk
D.a lack of regulation on food consumption
7、A.mail a gift card to her.
B.allow her to buy on credi
C.credit it to her account
D.give her some coupons.
8、A.refunding for goods returned
B.free installing of appliances.
C.prolonged goods warranty.
D.complimentary tailoring
5、Questions 5 to 8 are based on the conversation you have just heard.A.it has started a week-long promotion campaign.
B.it has just launched its annual anniversary sales
C.it offers regular weekend sales all the year round
D.it specializes in the sale of ladies designer dresses
6、A.price reductions for its frequent customers.
B.coupons for customers with bulk purchases.
C.free delivery of purchases for senior customers.
D.price adjustments within seven days of purchase.
A、coarse
B、smooth
C、natural material
D、artificial material
A、Silence is gold
B、All that glitters is not gold
C、Every cloud has a silver lining.
D、worth its weight in gold
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