下列运动过程中，不属于在任何相等的时间内，物体动量变化相等的是

A．自由落体运动 B．平抛运动

C．匀速圆周运动 D．匀减速直线运动

参考答案：

提问用户：Ek***Ob9

可能感兴趣的题目：

1 以下生活用品中，材料的硬度最大的是 A.肥皂 B.塑料脸盆 C.松木梳 D.陶瓷杯
2 现在大学校园里风行“拿证热”，认为多拿证就可以拓宽就业渠道，计算机等级考试也是大家追逐的“权威”证书，其报考步骤为：①领准考证；②报名；③笔试、上机考试；④摄像．其正确的流程为______（用序号表示）
3 I am afraid something terrible has _______. I won’t be able to see you tonight. A．set down B．gone through C．come up D．got along
4 Who ________ that played a trick on the new English teacher? A．it was B．was it C．he was D．was him
5 北京时间2008年3月12日消息，美国宇航局网站最近公布了一张“火星勘测轨道器飞行器”拍摄的火星北极新月形沙丘的照片，沙丘上呈现出许多奇异的平滑弧形。火星北极新月形沙丘照片的获得主要是通过现代信息技术中 A．全球定位系统 B．遥感 C．地理信息系统 D．数字地球
6 常温下，下列各组离子在指定溶液中一定能大量共存的是（　　） A．pH=1的溶液中：K+、Ag+、NO3-、I- B．FeCl3溶液中：K+、Na+、SO42-、SCN- C．通入足量CO2的溶液中：H+、NH4+、Al3+、SO42- D．由水电离的c（H+）=1×10-14 mol/L的溶液中：Na+、Br-、SiO32-、NO3-
7 现有橡皮、玻璃球、条形磁铁、盐水、纯水、铅笔芯六种物质，下表中对它们的分类，依据的物理属性是 A.密度 B.磁性 C.导电性 D.比热容
8 阅读理解。 Two thieves came to a house to steal something, they dug a hole in the wall of the house. There lived many mice in the house. The woman in the moonlight saw a mouse crawl (爬行) into the house. "Look! In comes one," she said to the man in the house. He was so frightened that he hurriedly crawled out of the house and said to the one waiting outside, "She found me when I was just in." But the thief outside didn"t believe him, so he said, "Let us two try to crawl into the house together." At that time two mice happened to crawl into the house, too. The woman saw the mice and shouted, "In come two, catch them!" The two thieves were terribly frightened. The man in the house said, "You saw them come in but where are they? I will catch them tonight." The two thieves started running away at once. The two thieves wanted to make it clear whether they had been found or not the night before. The next day they acted as men selling sweet potatoes and came before the house. The man and the woman were ploughing in their fields. The rein(缰绳)broke and the woman came home for a rope. She saw two men selling sweet potatoes and wanted to buy some. She picked out two which looked like mice. At the time the man couldn"t wait for her any longer in the fields and he ran back from the fields to hurry her up. The woman showed the sweet potatoes to the man and said, "How they look like the two of last night." The man said, "I asked you to fetch a rope, why don"t you hurry for it?" The two thieves ran away very quickly without their sweet potatoes. 1. The two thieves failed to steal anything from the house because______. A. they were found out B. they were frightened by what they had heard in the house C. they didn"t work together well with each other D. mice stopped them from doing so 2. From the last paragraph, we know that ______. A. the two thieves were famous selling sweet potatoes B. the woman recognized the two thieves C. the woman pretended to know nothing about the two thieves and made fun of them D. the two thieves didn"t know that they were not found at all 3. The woman said, "How they look like the two of last night." Here "the two" refers to ______. A. the two thieves B. nothing C. the mice D. the ropes
9 在内河航运中，年运输量仅次于长江的是 A.黄河 B.珠江 C.淮河 D.京杭运河
10 图12为我国某城市外围农业生产分布示意图。读图完成26～27题。小题1:该城市郊区出现蔬菜－稻米－柑橘种植的差异，主要影响因素是 A．气候 B．土壤 C．土地价格 D．交通条件小题2:冬半年，该城市所在地区最有可能出现的气象灾害是 A．寒潮 B．台风 C．旱涝 D．地震