证明递增数列

游山西村的诗意是什么呀 I (does not,do not) know Berry is phonenumber.( )21 怎么知道哪些单词是高级词汇 《游山西村》的诗意（ ） 应该的单词.高级词汇 甲、乙两人和做一项工程,若甲做4天,乙再做15天可完成任务,需要的工资费用为420元；若甲做八天,余下的工程由乙单独完成,则乙完成剩余工程的时间比乙单独完成的时间少10天,共需要工资费 -3.14乘35.2加6.28乘（-23.3）-15.7乘36.4 一件工作,甲单独做15小时完成,乙单独做12小时完成,若甲先做成小时,乙接着做甲做法小时,最后甲,乙两人合作,再做几小时完成?用方程计算,对不起,打错了是;若甲先做1小时,乙接着做甲做3小时 what's the meaning of these vocabulary1:post listening2:make fun of What does Linda think of her work? "let it be." what's the meaning of the sentences?类似的句子表达有什么?这句话可以翻译成：我想知道除了这样的表达，还有其它类似的表达吗？ 疯狂猜图 品牌 一个红色的圆里面一个指南针的符号 proper___ and exercise are both important for health A.food B.diet C.foods D.diets The giant panda will grow _____(health),if they get enough food.grow有没有特殊的用法,比如表达某意思时,相当于系动词,后加adj. —Did you remember the days _____ we worked on the farm?—Certainly.Especially the hard time _____ we spent together.A.which;when B.when;which C.when;when D.which;which they need enough food and ——(live)areas they didnt know enough about food.分析句子成分 I am a little tired.等于什么 a little tired...keep myself... 英文高一程度 1、Many villagers moved to the city ___ a better lifeA.to search B.in search of请问为什么 许多乡村人搬到城市去是为了寻找一个更好的生活,这里to search不是表目的吗 2、 ___ the office's door,he made 一道数学题.不是很难的.（1）如图,在△ABC中,∠ACB=100°,AC=AE,BC=BD,则∠DEC的度数为（ ）A.20° B.25° C.30° D.40° Look not to understand? 1道数学题（不是很难啦）1、一列火车通过一座长1260米的大桥,从车头到车尾离桥共用了60秒,这里火车穿越长2010米的隧道要90秒,这列火车长多少米? 不是很难哦鞋厂生产的皮鞋按质量分为10个档次.生产最低档次（第1档次）的皮鞋每双利润为24元.每提高一个档次,每双皮鞋利润增加6元.最低档次皮鞋每天可以产180双.提高一个档次每天将少 The hybrid,what did you look understand me to say?,scolds you not to know!谁能解释下,快 Look not to understand well,say you care about him many times? 我上课不听讲,做小动作,帮帮我写检讨书500字,please!(五年级)无 上课不听讲的检讨书1000字 上课不听讲的检讨书3000字 翩可以组什么词 翩怎么组两个字的词语 A wonderful life and wonderful living.A thing of beauty is a joy forever.