SummarizationRead each of the following short paragraphs and complete the phrase or sentence that expresses the main idea of the paragraph. The first letter of the missing word is given be fore the blank.Paragraph 5.Federal emergency officials are preparing for a U. S. outbreak of foot-and-mouth disease. The U. S. government has added hundreds of inspectors at airports and ports in an effort to keep the disease out, but the battle is made more difficult because of booming global travel and trade. Foot-and-mouth disease affects pigs, cattle and other cloven-hoofed animals but is not generally harmful to humans.5.P______ against the US outbreak of foot-and-mouth disease.
【正确答案】：prevention
【题目解析】：P220
