第17题: [单项选择]轮胎规格表示包括以下哪些方面() A. 外直径、轮辋直径、断面宽度、断面扁平度 B. 外直径、轮辋直径、断面宽度 C. 外直径、内直径、断面宽度、断面扁平度 D. 外直径、内直径、轮辋直径、断面扁平度 参考答案:A
第18题: [单项选择]Passage Three Questions 33 to 35 are based on the passage you have just heard.A. They speed up to pass. B. They waited with patience. C. They tried their best to help. D. They put on their flashlights too. 参考答案:B 答案解析:[解析] What did the other drivers do when they saw the flashlights