Example sentences of "[verb] evolved over the [num ord] " in BNC.

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1 Instead , I shall draw on some of what has evolved over the last half century as ‘ curriculum theory ’ in education to try to suggest some frameworks and perspectives for analysing the wealth of detail which the system displays .
2 This system has evolved over the last six years , having originally been designed to deal with the maintenance of national standards in the National Certificate .
3 The fresh , country look has evolved over the last few years as people have begun to paint wooden units and replace solid doors with glazed doors to create a lighter atmosphere .
4 By the middle decades of the century the " old diplomacy " as it had evolved over the last three hundred years , with its easy-going and cosmopolitan atmosphere , its often short hours of work , its extensive use of unpaid or inadequately paid diplomats , its almost complete immunity from effective public scrutiny , was under increasing pressure .
5 Many treatments have evolved over the last 30 years for controlling upper gastrointestinal haemorrhage in patients with cirrhosis and portal hypertension .
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