Example sentences of "[noun sg] level [prep] [noun] [vb pp] " in BNC.

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1 With the latter form of regional economics association , nation states are free to adopt their own tariff levels upon goods imported from the rest of the world .
2 Thus , to take a matter of current importance , the policy of imposing sanctions on Serbia and Montenegro is implemented at Community level by legislation adopted under Article 113 of the EEC Treaty as a matter of common commercial policy .
3 Environmental groups and local angling associations have expressed concern over the mercury levels in fish caught from the Mersey .
4 Other studies have shown increased lipid peroxide levels in lipoproteins isolated from diabetic patients ( Nishigaki et al , 1981 ) and animals ( Higuchi , 1982 ) .
5 The scientists attributed the deterioration in ozone levels to particles boosted into the stratosphere by volcanic eruptions in 1991 and to the continued increase in worldwide emissions of chlorofluorocarbons ( CFCs ) and other ozone-depleting gases .
6 The survey also asked companies about the salary level of executives recruited via headhunters .
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