Example sentences of "have proved [adv] [adj] [prep] [noun sg] " in BNC.
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| 1 | However , the challenge is there to be met and oncogene manipulation may provide the next real step forward in a disease which has proved largely refractory to radio- or chemotherapy , and in which prognosis has changed little over the past 40 years . |
| 2 | Again , the Governor of the Bank of England noted yesterday that the recession has proved unexpectedly persistent in north America and that in continental Europe , Japan and elsewhere economic activity has slowed and unemployment has begun to rise . |
| 3 | This method has proved generally useful in chromosome walking exercises and is particularly convenient for isolating the ends of yeast artificial chromosome clones for rapid physical genetic mapping and ordering of YACs to assemble so called ‘ contigs ’ . |
| 4 | This was one ‘ problem ’ , at least , which the present administration has proved highly successful at solving . |
| 5 | According to the report , the metal alloy used in the construction of many of the parts of pressurised water reactors has proved less resistant to corrosion than expected , resulting in cracks appearing . |
| 6 | Unfortunately , the mouse embryo has proved less tolerant to explantation in vitro , during gastrulation and organogenesis , than has the rat ( 18,19 ) . |
| 7 | The most recently adopted scheme , the 1990 Budget Enforcement Act , had proved as vulnerable to evasion as its predecessors . |
| 8 | The subject working parties have proved more independent of mind and judgement than critics had expected : less like Rosencrantz and Guildenstern ( ‘ You were sent for : and there is a kind of confession in your looks which your modesties have not craft enough to colour ’ ) ; more , perhaps , like Polonius , given to worthy but occasionally tedious advice . |