The scientists have absolute freedom as to what research they think is best to （）.

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• Please Listen to the following TED talk and answer the questions followed.（6分29-7分09秒）The biggest reservoir， the ocean， was the
• Scientists have discovered how to predict an earthquake .
• With the population explosion, scientists will have to come （）new methods of increasing the world’s food supply.
• The union insists that scientists have freedom to speak their minds to the public without （）.（censor; 请用所给单词的正确形式填空。）
• Scientists in different countries, working independently of each other, have（）very similar results.