Example sentences of "[noun pl] [be] [prep] [adv] a [noun] " in BNC.

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1 Analyte affinity constants of antibodies are at least an order of magnitude greater than those of enzymes , so much higher sensitivity is possible , but it is difficult to extract a detectable signal from the binding event .
2 Although 20 per cent go out into the country once a week , the study showed that less than half of the population are monthly visitors and 80 per cent of visits are for only a day or less .
3 Readers will note that the rest of this book will sometimes raise more questions than it answers , but they will , I hope , agree that raising questions is at least a step towards providing answers and solving problems .
4 There was not far to walk , the formal procession to the gallows being by then a thing of the past .
5 Eliot instances the activities of Dyak headhunters the production of whose carvings is at once a task utilitarian and sacred .
6 Most courses are at least a smile long , so your horse should be fit — he should be able to complete a five minute strong canter without showing signs of distress .
7 The strong , active , lithe bodies of her women are at least an improvement on the passive and fragile looking beauties of the Pre-Raphaelites .
8 He remains a major shareholder , but his shares are worth only a fraction of their '84 value .
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