第8题: [单项选择]汽包定排的作用是()。 A. 排放汽包上部漂浮物 B. 降低汽包液位 C. 排放底部固体 D. 降低汽包内部温度 参考答案:C
第9题: [单项选择]What does the woman ask about A. How the man is. B. What the man is going to do. C. Whether the man is better. 参考答案:A 答案解析:[听力原文] F: How are you feeling today M: Much better, thanks.