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抽样调查的优点有（ ）。
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After learning the prefix un-, suffix -ant and -ify, now try to fill in the blanks with the words in the bracket. Change the form where necessary.1. Despite being________(class) as a meat-eater, the panda has a diet that is overwhelmingly vegetarian.
2. They have developed computerized systems which will greatly _______ (assistant) all library users so that they will not need the help of others.
3. Changes have been made to the construction requirements in this city in order to make the buildings and highways more_________(resist) to earthquakes.
4. After a two-month inquiry, the police have _______ (cover) the three men's intention to rob a bank and have arrested them.
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