第9题: [单项选择]在100米长的路段中种树,请问至少要种多少棵树才能保证至少有2棵树之间的距离小于10米 A. 10 B. 11 C. 12 D. 13 参考答案:C 答案解析:[解析] 如果两棵树之间的距离不小于10米,那么最多可以种100÷10+1=11棵树。因此,只要大于11棵树,即至少种12棵树,可以保证2棵树之间的距离小于1O米。
第10题: [单项选择]What can we infer from the conversation A. The man won’t have the meeting. B. The man will go to the meeting whether the time is changed or not. C. The man will go for a meeting any day. D. Any meeting is the same to the man. 参考答案:B 答案解析:[听力原文] W: We are going to change our meeting from Monday to Tuesday. M: It’s all the same to m