Researchers believe that the insect(昆虫) is better at managing congestion (拥挤) than humans.

Researchers believe that the insect(昆虫) is better at managing congestion (拥挤) than humans. Ants are the most many type of animal on earth with brains that contain about 250,000 cells ---- the largest among insects.
Now an intelligence expert Dr. Dirk Helbing says understanding more about ants could help solve one of the headaches of modern life -- road congestion.
His team set up an ant motorway with two routes of different widths from the nest to some sugar syrup (糖浆). Soon the narrower（更窄的） route soon became crowded（拥挤的）. But when an ant returning along the crowded route to the nest met with another ant just starting out, the returning ant pushed the newer onto the other path. However, if the returning ant had enjoyed a trouble-free journey, it did not send the newer in a different direction.
The result was that just before one route became clogged , the ants had turned to another route and traffic jams never formed.
The researchers also created a puter model of more plex ant networks with routes of different lengths. The team found that even though ants being sent in another direction sometimes took a longer route, they still got to the food quickly and efficiently.
Dr. Helbing, of the Dresden University of Technology in Germany, said that while you cannot allow cars to meet with traffic ing in the opposite（相反的）direction as a form of traffic control, you could do the next best thing and allow them to municate.
His plan is to force cars traveling in one direction to tell oning traffic what the conditions they are about to meet with-- so they can avoid that situation if necessary.
【小题1】The first paragraph suggests that     .A．ants have a special way to manage congestion B．ants are clever and good at dealing with the traffic jams because of developed brainC．insects are similar to animals in dealing with the traffic jams because of developed brainD．insects have more advantages than humans【小题2】 The underlined word clogged can be replaced by      in the following four words.A．cleanedB．narrowedC．crowdedD．shortened【小题3】If an ant returns along crowded route to the nest, how does the ant solve the traffic problem?A．The ant will change the direction of its own.B．The ant stopped the newer from moving ahead and forced the newer to wait there patiently.C．The ant can't direct the newer.D．The ant will push the newer to the other route, so traffic jams won't form.【小题4】 What's the advice that Dr. Helbing gives us?A．The cars cannot be allowed to municate with traffic ing in the opposite direction.B．The cars can municate with traffic in the same direction.C．The cars that travel in one direction can tell oning traffic about the traffic conditions.D．We should build more routes of different lengths and widths.B