第21题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. They are boiling a cup of water. B. They are stirring a cup of mud. C. They are cooking sweet and sour rice. D. They are writing down the recipe. 参考答案:C 答案解析:[听力原文]
M: OK...done．What is the next step Oh I remember now that the next step is to add a cup of
第22题: [单项选择]区段人工解锁按钮盘是用于（）。 A. 故障解锁 B. 区段解锁 C. 进路解锁 D. 人工解锁 参考答案:A
