问题
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There are many forms of online advertising. ()is a small rectangular object on a and incl
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There is no doubt ______ a large number of people have benefited from heart surgery.A.whet
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When there are small children around, it is necessary toput the bottles of pills out
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Apart from a handful of weather stations, within 2 000 miles of the South Pole there is no
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There is a small risk of brain damage from
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There is a growing awareness of the damage that e