第17题:[单选题]下列脂肪供能比计算公式正确的是( )。 A. 脂肪物摄入量×4÷总能量摄入量×100% B. 脂肪摄入量×2÷总能量摄入量×100% C. 脂肪摄入量×9÷总能量摄入量×100% D. 脂肪摄入量÷总能量摄入量×100% 参考答案:C
第18题: [单项选择]Passage Three Questions 33 to 35 are based on the passage you have just heard. A. By careful repetition. B. By giving a link between two parts. C. By asking the audience questions. D. By useful information. 参考答案:A 答案解析:[听力原文] How can a good speaker emphasize the key points in his activity