He () to a quiet village after his failure in the election campaign.
A.fled
B.retreated
C.disappeared
D.reversed
A.returned
B.replaced
C.reversed
D.revealed
A.reverted
B.rectified
C.removed
D.reversed
Passage Three
When it comes to singling out those who have made a difference in all our lives, you cannot overlook Henry Ford. A historian a century from now might well conclude that it was Ford who most influenced all manufacturing, everywhere, even to this day, by introducing a new way to make cars--one, strange to say, that originated (超源于) in slaughterhouses (屠宰场).
Back in the early 1900's, slaughterhouses used what could have been called a "disassembly line". Ford reversed this process to see if it would speed up production of a part of an automobile engine called a magneto (磁电机). Rather than have each worker completely assemble a magneto, one of its elements was placed on a conveyer, and each worker, as it passed, added another part to it, the same one each time. Professor David Hounshell of the University of Delaware, an expert on industrial development, tells what happened.
"The previous day, workers carrying out the entire process had averaged one assembly every 20 minutes. But on that day, on the line, the assembly team averaged one every 13 minutes and 10 seconds per person."
Within a year, the time had been reduced to five minutes. In 1913, Ford went all the way. Hooked together by ropes, partially assembled vehicles were pulled past workers who completed them one piece at a time. It wasn't long before Ford was turning out several hundred thousand cars a year, a remarkable achievement then. And so efficient and economical was this new system that he cut the price of his cars in half, to $260, putting them within reach of all those who, up until that time, could not afford them. Soon, auto makers the world over copied him. In fact, he encouraged them to do so by writing a book about all of his innovations (革新), entitled Today and Tomorrow. The Age of the Automobile has arrived. Today, everything from toasters to perfumes is made on assembly lines.
To what extent does the writer agree with the historian a century from now?
A.He agrees only slightly.
B.He agrees almost completely.
C.He almost disagrees.
D.He disagrees completely.
Cream and butter contain pretty much the same substances, so why cream should sour much faster has been a mystery. Both are emulsions—tiny globules(小球) of one liquid evenly distributed throughout another. "The difference lies in what's in the globules and what's in the surrounding liquid", says Brocklehurst, who led the investigation. In cream, fatty globules drift about in a sea of water. In butter, globules of a watery solution are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the mixture. "This means that in cream, the bacteria are free to grow throughout the mixture", he says.
When the situation is reversed, the bacteria are locked away in compartments(密封仓) buried deep in the sea of fat. Trapped in this way, individual colonies cannot spread and rapidly run out of nutrients. They also slowly poison themselves with their waste products. "In butter, you get a self-limiting system which stops the bacteria growing", says Brocklehurst. The researchers are already working with food companies keen to see if their products can be made resistant to bacterial attack through alterations to the food's structure. Brocklehurst believes it will be possible to make the emulsions used in salad cream, for instance, more like that in butter. The key will be to do this while keeping the salad cream liquid and not turning it into a solid lump.
The significance of Brocklehurst's research is that ______.
A.it suggested a way to keep some foods fresh without preservatives
B.it discovered tiny globules in both cream and butter
C.it revealed the secret of how bacteria multiply in cream and butter
D.it found that cream and butter share the same chemical composition