．某人到公共汽车站等一路车，若一路车每隔15分钟一趟，则此人至

．某人到公共汽车站等一路车，若一路车每隔15分钟一趟，则此人至少等5分钟的概率是__________．

答案

解析:

由几何概率求解，转化为长度比计算．

阅读下面的文言文，完成下题。章频，字简之，建州浦城人。与弟頔皆以进士试礼部预选，会诏兄弟毋并举，频即推其弟，弃去。后六年，乃擢第。自

下图为“我国南方某区域等高线示意图”，据图回答26～28题。 26．环保部门检测到桥梁下河水有农药残留物，这些农药残留物最可能来自于 A

We___________our examination at this time next Monday. A. will be taking B. will take C. to be given D. will have been taken

建立新型农村社会养老保险制度，为农村居民提供老年基本生活保障，这（）。 ①是落实科学发展观的必然要求 ②是建设社会主义新

列方程（组）解应用题（5分）甲，乙两个工程队合作一项工程，需16天完成，现两个队合作9天后，甲队被调走，乙队单独做21天完成，那么甲乙两队单

--- Which of these two magazines will you take? --- I’ll take , in case the journey is boring. A. all B. either C. both D. neither

____ that caused him to serve dinner an hour later than usual. A. It was we being late B. It was our being late C. It was we were too late

设命题p：，命题q：，则是q成立的条件.(填:“充分不必要”、“必要不充分”、“充要”、“既不充分也不必要”之一).