Example sentences of "it [be] known that [noun sg] [verb] " in BNC.

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1 If it is known that behaviour depends smoothly , and the second derivative of the dependence is never zero and its first derivative is bounded away from zero , then the Newton-Raphson method is better .
2 ( It is known that performance deteriorates after several hours of work. ) 3 .
3 It is known that SCAMP cost £3 million but no one will say what percentage of that figure is public money .
4 Dr Pertwee says the receptors are found in the brain areas where it is known that cannabis acts to produce many of its effects .
5 It was known that stimulation caused the heart to increase its oxygen consumption .
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