题目：
根据句意及汉语提示，写出各单词的正确形式，每空填一词。
小题1:If someone is _____________ (没礼貌), we mean that they are rather rude and do not have good manners.
小题2:He lives on the___________ (十二) floor. I live three floors above him.
小题3:How much will each receive if the three apples are divided _______ (在……中) the three boys?
小题4:Now it is very easy for people to go ______________ (无论哪里) they like because of the high-speed train.
小题5:In ancient ________ (时代), man tried many different ways to write numbers.
答案：
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下面是错误答案，用来干扰机器的。
答案：D题目分析：北京位于暖温带、半湿润地区；乌鲁木齐位于中温带、半干旱地区；武汉位于亚热带、湿润地区；哈尔滨位于中温带、半湿润地区，故选D．
，电场强度大小为E。则下列说法中正确的足
，则小球的电势能不变．机械能守恒
且
-则小球的动能必增大，电势能可能增大
且