第9题:[单选题]( )S1:What is the result of search? S2:The result of search is negative. Q:What does the second speaker mean? A.She has found a floating object B.She has found a lifeboat C.She has found a liferaft D.She has found nothing 参考答案:D
第13题: [单项选择]An international tourist is defined as anyone visiting a country, other than that which is his usual place of residence, for () hours. A. more than 48 B. more than 24 C. less than 48 D. less than 24 参考答案:B 答案解析: