2.By pressing a tiny amount of nitrogen between two diamonds to a pressure of 25 million pounds per square inch, scientists not only were able to transform the gas into a solid, but they also created a semiconductor similar to silicon.
not only were able to transform the gas into a solid, but they also created
not only were able to transform the gas into a solid but also creating
were able not only to transform the gas into a solid but to create
were able not only to transform the gas into a solid but also creating
were not only able to transform the gas into a solid, but they were also able to create
3.In the Louisiana Purchase of 1803, the United States acquired 828,000 square miles for about four cents an acre, which more than doubled the country's size and that brought its western border within reach of the Pacific Ocean.
In the Louisiana Purchase of 1803, the United States acquired 828,000 square miles for about four cents an acre, which more than doubled the country's size and that brought
For about four cents an acre the United States acquired, in the Louisiana Purchase of 1803, 828,000 square miles, more than doubling the country's size and it brought
With the Louisiana Purchase in 1803, the United States acquired 828,000 square miles for about four cents an acre, more than doubling its size and bringing
The United States, in the Louisiana Purchase of 1803, for about four cents an acre, acquired 828,000 square miles, more than doubling the country's size, bringing
Acquiring 828,000 square miles in the Louisiana Purchase of 1803, the United States bought it for about four cents an acre, more than doubling the country's size and bringing
4.From studies of the bony house of the brain, which is the cranium, located in the back of the skull, come what scientists know about dinosaur brains.
From studies of the bony house of the brain, which is the cranium, located in the back of the skull, come what scientists know about dinosaur brains.
The knowledge that scientists know about dinosaur brains comes from studies of the bony house of the brain, located in the back of the skull, that is, the cranium.
The knowledge of dinosaur brains that scientists have come from studies of the bony house of the brain, which is located in the back of the skull and is called the cranium.
What scientists know about dinosaur brains comes from studies of the cranium, the bony house of the brain located in the back of the skull.
Located in the back of the skull is the cranium, the bony house of the brain, and it is from studies of this that scientists know what they know about dinosaur brains.
Like their male counterparts, women scientists are above average in terms of intelligence and creativity, but unlike men of science, their female counterparts have had to work against the grain of occupational stereotyping to enter a "man's world."
6.Ozone, a special form of oxygen that screens out harmful ultraviolet rays, reaches high concentrations twelve miles above Earth, where it has long appeared that it was immune from human influence; we have now realized, though, that emissions of industrial chlorofluorocarbons deplete the ozone layer.
7.The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one in a million chances to cause cancer.
as little risk as one in a million chances to cause
as little risk as one chance in a million of causing
as little risk as one chance in a million that it will cause
a risk as little as one chance in a million for causing
a risk as little as one chance in a million for it to cause
8.Performing a risky maneuver that required precision flying, not only did space shuttle astronauts retrieve an orbiting satellite, it was done simultaneously while avoiding being rear-ended by a passing ultraviolet telescope.
not only did space shuttle astronauts retrieve an orbiting satellite, it was done simultaneously while avoiding
not only was an orbiting satellite retrieved by space shuttle astronauts, but they also simultaneously avoided
an orbiting satellite was retrieved by space shuttle astronauts who also avoided simultaneously
space shuttle astronauts retrieved an orbiting satellite, simultaneously while avoiding
space shuttle astronauts retrieved an orbiting satellite and simultaneously avoided
In the mid-1920s the Hawthorne Works of the Western Electric Company was the scene of an intensive series of experiments that would investigate changes in working conditions as to their effects on workers' performance.
that would investigate changes in working conditions as to their effects on workers' performance
investigating the effects that changes in working conditions would have on workers' performance
for investigating what the effects on workers' performance are that changes in working conditions would cause
that investigated changes in working conditions' effects on workers' performance
to investigate what the effects changes in working conditions would have on workers' performance
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发表于 2010-3-20 14:05:45
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