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The Democratic Unionists are ______ the IRA decision.
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Which of the following about marching in the suffragette movement days is NOT true？
听力原文： In a busy classroom filled with nearly 20 children, Sabriye Tenberken lectures her pupils to always help others who need it. The children nod, leave their chairs and rush into the kitchen, ready for supper.
The school, founded by Ms. Tenberken and her Dutch partner, Paul Kronenborg, is tucked away in a small alley, not far from a busy street in Lhasa. They founded Braille Without Borders, hoping that one day their work would not only help Tibetans, but also visually impaired people from other developing countries.
Ms. Tenberken, a 34-year-old German woman who has been blind since the age of 12, pursued a master's degree in Tibetan studies in her hometown, Bonn.
When she realized that the Braille writing system for the blind did not exist in Tibetan, she developed one—in just two weeks. Braille uses raised dots on a page to create words—users feel the dots to read the page.
Which of the following statements is NOT true about Ms. Tenberken, the founder of the school？
At Demoiselle Creek a few miles from Hillsborough is a subterranean lake of undetermined size, low-roofed by dripping stone icicles. The white gypsum floor of the lake emerges startlingly visible through the clear water. To step into the cavern entrance on a hot summer day is like unexpectedly walking into a cold storage plant.
When you first glimpse the Peticodiac River at Moncton you may wonder why it is called a river as there is only a little trickling brook to be seen while the billowy, chocolate- blancmange banks are bare of water.
And then, suddenly, the missing water comes into view-a veritable tidal wave as high as five feet, fanning up the empty river bed at eight miles an hour, like surf cresting up an endless beach. What causes this？ The rapidly swelling Fundy tide is dammed temporarily by shoals at the river's mouth. When at last it overcomes these obstacles, the triumphant tide drives inland with inexorable momentum, sweeping everything before it.
More than one oil prospector, intently examining the shale in the exposed river bed, has been trapped by the incoming tidal bore, picked up bodily, tossed head over feet a few times and then flung up on the muddy embankment like a devoured morsel.
But if I had to pick a favorite natural phenomenon it would be the Magnetic Hill. This is perhaps understandable under the circumstances, which date back to a June day in 1933 ... and how three young newspapermen recognized a story but failed to recognize a fortune.
Often the night staff of The Telegraph-Journal in Saint John had heard pressroom superintendent, Alex Ellison tell a curious anecdote. It was about a clergyman early in this century, who was bringing children home from a picnic. He stopped his touring car at the foot of a hill during a rainstorm to put up the side flaps.
To the good man's amazement, his car started to coast up the hill by itself-"the most astonishing thing I ever experienced," the cleric related. He had to spring after it and jump in.
The unbelievable episode seemed so well vouched for that three of us decided one night to try to locate the hill. We knew, of course, this was a fool's errand. Only a fool would think otherwise.
It was an ambitious project in those days even to think of driving one hundred miles to Moncton over rutty dirt roads in a tiny open 1931 Ford Roadster ... John Bruce, a former engineer, had brought his surveying instruments just in case ....
Now began the frustrating process of trying one hill after another, on every country road within a radius of ten miles of Moncton.
We attracted quite a lot of attention. Every time John Bruce halted the car at the base of a grade and put it into neutral, nothing happened. But we could see lace curtains being pulled back in farmhouse windows, and occasionally we'd glimpse a nose or a pair of raised eyebrows. It must have looked like the end of quite a party, or the start of one.
Once a passing farmer herding some cows called out: "Need any help？"
"No," was the reply. "We're just waiting to see if the car will coast up the hill!"
The farmer kept looking back over his shoulder all the way to the next field.
Three weary modern explorers were ready to give up around 11 A. m. We were down to our last hill-a former Indian trail that became a wagon road, on a two hundred yard gradual rise leading
In 1971, a study of 700 children, ages 2 to 14, used a special blood pressure recorder which minimizes observer error and allows for standardization of blood pressure readings. Before then, it had been well established that the blood pressure of adults aggregates familially, that is, the similarities between the blood pressure of an individual and his siblings are generally too great to be explained by chance. The 1971 study showed that familial clustering was measurable in children as well, suggesting that factors responsible for essential hypertension are acquired in childhood. Additional epidemiological studies demonstrated a clear tendency for the children to retain the same blood pressure patterns, relative to their peers, four years later. Thus, a child with blood pressure higher or lower than the norm would tend to remain higher or lower with increasing age.
Meanwhile, other investigators uncovered a complex of physiologic roles-including blood pressure-for a vasoactive (作用于血管的) system called the kallikrein-kinin (血管舒缓酶-激酞原 ) system. Kallikreins are enzymes in the kidney and blood plasma which act on precursors (先兆) called kininogens to produce vasoactive peptides(酞)called kinins. Several different kinins are produced, at least three of which are powerful blood vessel dilators. Apparently, the kallikrein-kinin system normally tends to offset the elevations in arterial pressure that result from the secretion of salt-conserving hormones such as aldosterone(醛固酮) on the one hand and from activation of the sympathetic nervous system (which tends to constrict blood vessels) on the other hand.
It is also known that urinary kallikrein excretion is abnormally low in subjects with essential hypertension. Levels of urinary kallikrein in children are inversely related to the diastolic blood pressures of both children and their mothers. Children with the lowest kallikrein levels are found in the families with the highest blood pressure. In addition, black children tend to show somewhat lower urinary kallikrein levels than white children, and blacks are more likely to have high blood pressure. There is a great deal to be learned about the biochemistry and physiologic roles of the kallikrein-kinin system. But there is the possibility that essential hypertension will prove to have biochemical precursors.
The author is primarily concerned with ______.
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